HP-13
it can easily be done. You must use the IrDA,
and you can obtain a> stand alone adapter or use the built in
IrDA on your laptop. If you> use the IrDA on you laptop. Set
your BIOS to IrDA standard not FIR.> You will need to obtain
a copy of IrCOMM2K for free on the internet,> and it will let
you set your laptops IrDA to be a com port on a> Windows
computer. I use Hyperterminal for the transfer. There are
two> types of stand alone IrDA adapters that you can buy. One
type is> \intelligent\ ie. you just plug it into a standard
DB-9 serial port> and it works. This type can be used with
radio modems and other non> Windows type devices. The second
type requires Windows drivers, and> only functions with a
PC.> Now the bad news... I think there is a bug in the IrDA
software on> the 49G+. The following comments are only
relevant to larger Ŝles,> but this issue is extremly
important to me. On downloads everything> goes rather well, I
only see a few retries on the 49G+ display, but on> the PC end
I see a rather large number (18 - 25)resent packets show> up,
but the transfer usually being succesful. Now sending back to
the> 49G+ is much more of a problem. On small Ŝles you will be
O.K., but> too many retries occour and failure results as the
Ŝles become> larger. About 80% of the time on large Ŝle
uploads, the 49G+ will> completly (paper clip time) lock up.>
> John EversIf you have the option, try transferring in dark
settings. Somesensors have trouble with interference from
other sources radiating atfrequencies that you may not
realize. Itıs not likely, but notimpossible. Sharpıs IS1U60
receiver is noted on http://www.lirc.org/receivers.html is
one example, although at more ofan extreme. The faster data
needs to go, the more sensitive thecommunication link
becomes.==== Pardon me for intruding, but Sony Ŝxed my
\broken\ television IR \remotecontrol by having me change the
light bulb in the lamp (about 12 ft. awayfrom both the TV and
the remote) from the \energy saving\ \ŝuorescent-typebulb to
the old fashioned incandescent bulb. He was very amused at
thenumber of TVs his employer was getting back because of
\broken\ remotes. \Idoubt that his employer was. In all IR
transfer functions here at my home I try to make sure that
Ihave only beautiful, yellow, incandescent bulbs in the
lamps.Jim: If you have the option, try transferring in dark
settings. Some: sensors have trouble with interference from
other sources radiating at: frequencies that you may not
realize. Itıs not likely, but not: impossible. Sharpıs IS1U60
receiver is noted on: http://www.lirc.org/receivers.html is
one example, although at more of: an extreme. The faster data
needs to go, the more sensitive the: communication link
becomes.====Warning: product endorsement follows.> I try to
make sure that I have only beautiful,> yellow, incandescent
bulbs in [my] lamps.Ever tried GEıs \Reveal\ light bulbs? The
bulbs themselves look paleblue, but the light that they make
is true white light; theyıreessentially incandescent bulbs
with built-in white-balance Ŝlters. They make everything
appear as colorful as they do in sunlight. I usethem
exclusively, and highly recommend them. Theyıre
availablewherever light bulbs are sold. More info
here:http://www.gelighting.com/na/reveal/media_
product.html-Joe-Dislaimer: I donıt work for GE, HP, or
anybody else.====If you donıt work for anyone it must be hard
to make a living... ;)> -Joe-> Dislaimer: I donıt work for GE,
HP, or anybody else.====> Warning: product endorsement
follows.>> > I try to make sure that I have only beautiful,>
> yellow, incandescent bulbs in [my] lamps.>> Ever tried GEıs
\Reveal\ light bulbs? The bulbs themselves look pale> blue,
but the light that they make is true white light; theyıre>
essentially incandescent bulbs with built-in white-balance
Ŝlters.> They make everything appear as colorful as they do
in sunlight. I use> them exclusively, and highly recommend
them. Theyıre available> wherever light bulbs are sold. More
info here:>
http://www.gelighting.com/na/reveal/media_product.html>>
-Joe-> Dislaimer: I donıt work for GE, HP, or anybody
else.Let there be light!You work for JHWH (just say
\Adonai\)!AND donıt forget *that*!
Brother-Peter====Greetings!I recently received my 49+, on the
whole, a very nice machine. I have an existing 64mb MMC card
made by Memorex. I used to use the card in my kept the card
partitioned and formatted with ext2, however I partitioned
and reformatted it on the Zaurus with mkfs.vfat /dev/...
prior to using it in the 49+. After I upgraded through USB I
inserted the card and nothing could be stored or recalled. I
believe it is because vfat is fat16 with long Ŝlenames. I
reformatted the card on the hp49+ and now I can store and
recall objects without any problems. However, when I mount
the card on the Zaurus all I get is garbage (many
Ŝles/directories with incomprehensible names, symbols etc.)
when reading the directory tree in the Ŝle manager and bash.
Iıve tried mounting it by explicitly deŜning the Ŝle system
type in fstab (vfat, dos, msdos) however each yields the same
result. The card still works Ŝne after I insert it back into
the 49+ with all the objects I put there earlier. I donıt
have a MMC or SD card reader for my pc. Perhaps the solution
lie in that. But I donıt see why I canıt read it on my PDA.
Whether this is due to my lack of know. Does having a
partition table affect how the 49+ reads the card? I heard
that most memory cards come without partition tables from the
factory, but thats just what I heard.For those interested,
here is some information on the
Zaurus:http://www.sharpelectronics.com/products/ModelLanding/
0,1058,698,00.htmlAny help or experiences would be greatly
appreciated.-Tony====demosthenes meinte >Greetings!>>I
recently received my 49+, on the whole, a very nice machine.
I have an >existing 64mb MMC card made by Memorex. I used to
use the card in my >kept the card partitioned and formatted
with ext2, however I partitioned >and reformatted it on the
Zaurus with mkfs.vfat /dev/... prior to using >it in the 49+.
After I upgraded through USB I inserted the card and >nothing
could be stored or recalled. I believe it is because vfat is
>fat16 with long Ŝlenames. I reformatted the card on the
hp49+ and now I >can store and recall objects without any
problems. However, when I mount >the card on the Zaurus all I
get is garbage (many Ŝles/directories with >incomprehensible
names, symbols etc.) when reading the directory tree in >the
Ŝle manager and bash. Iıve tried mounting it by explicitly
deŜning >the Ŝle system type in fstab (vfat, dos, msdos)
however each yields the >same result. The card still works
Ŝne after I insert it back into the >49+ with all the objects
I put there earlier. I donıt have a MMC or SD >card reader for
my pc. Perhaps the solution lie in that. But I donıt see >why
I canıt read it on my PDA. Whether this is due to my lack of
>know. Does having a partition table affect how the 49+ reads
the card? I >heard that most memory cards come without
partition tables from the >factory, but thats just what I
heard.>>For those interested, here is some information on the
Zaurus:>http://www.sharpelectronics.com/products/ModelLanding/
0,1058,698,00.html>>Any help or experiences would be greatly
appreciated.I think some time ago I had a similar problem
with MOD disks. Thedifference was to take care of wether the
disk was partitioned or not.That is wether it was treated
like a hard disk - with partitioninformation - or like a
ŝoppy without partition information. Theresult was very
similar to your observation. If you apply \fdisk -l\and the
card shows a wealth :-) of various unknown partitions,
thenyou should be pretty close.With my MOD a partitioned disk
would be mounted as e.g /dev/sdb1while the unpartioned disk
would be mounted as /dev/sdb thus mountingthe entire disk
rather than a non existing partition.Perhaps your situation
is similar, just give it a try.Gru G\.9fnter schink--
====This could be useful if it were possible.====Yes. I
printed mine at two pages per side, duplex, then had it bound
at \thelocal Kinkoıs for less than $5.00. It is quite readable
at this size, andŜts nicely in a backback. I can lay it ŝat on
a desk and see four pagesof content at once.> version of the
user manual? I know there is a PDF version in the CD>>>
Rod====I often end up with a function on the stack that I
would like to seeplotted. The plot environment on the HP49
expects me to enter the plotapplication and then enter the
desired function. An old RPN fart likemyself, often want to
operate on things that I already have entered,and get
frustarated when I dive into plot, just to realize that
Icanıt take the function with me.This is easy, I suppose:
what commands do I need to take a functionfrom stack level 1
and \make the best of it\ as a plotted function?STEQ? What
more?Or is there function within the the plot environment
that pulls afunction from the stack into the
application?Per.HP21->HP25->HP29C->HP28->HP48SX->HP49(One
could come to the conclusion that I should know how to use
thesegizmos by now...)====If you just want to see it, you
could make a little program:<< DUP ŒEQı STO ERASE DRAX DRAW 0
WAIT DROP >>Itıll just take the symbolic object from level 1
and store it into ŒEQı, erase the old graph grob, plot the
function, and then wait for you to press a key. Youıll be
left with the function on level 1 as before (unless you press
ON, then you get the function on level 2 and a 0 on level
1).If you still want the GUI, just do << DUP ŒEQı STO >> and
then invoke the GUI as usual.These are for the HP48, btw. I
assume theyıll work on the 49.If you wanted to use your 48SX,
you could download
PowerPlot:http://www.exzodia.net/hp48/software/index.shtmlIt
does what you want by default and thereıs a good chance that
itıd still be faster running on an SX than the 49 is. Iıve
never fully tested PowerPlot on an SX, so I cant say how well
it will work.. but I believe it should be okay.Aaron>I often
end up with a function on the stack that I would like to
see>plotted. The plot environment on the HP49 expects me to
enter the plot>application and then enter the desired
function. An old RPN fart like>myself, often want to operate
on things that I already have entered,>and get frustarated
when I dive into plot, just to realize that I>canıt take the
function with me.>>This is easy, I suppose: what commands do
I need to take a function>from stack level 1 and \make the
best of it\ as a plotted function?>STEQ? What more?>>Or is
there function within the the plot environment that pulls
a>function from the stack into the
application?>>Per.>HP21->HP25->HP29C->HP28->HP48SX->HP49>(One
could come to the conclusion that I should know how to use
these>gizmos by now...)> >====You cold always press the
ŒHISTı when entering a function...This lets you pull things
off the stack.cheers,Alhttp://alpage.ath.cx/hptute/====> > >
> Please, where could someone buy the 49G+ in London?> > I
will be spending the next year here doing an MSc in Imperial
College,> > and I think that it would be very helpful to have
a new calc,> > although my 49G and 32SII are always there when
I need them.> > > > > > Alex Markatis> > Civil Engineer >
Probably in a month or two Tottenham Ct Rd will be swarming
with them.I ll be waiting for them!> Doesnt the HPCC have
meetings at Imperial (read up on comp.sys.hp48> and visit the
freqntuly mentioned web sites to learn more). I think>
www.hpcc.org is the place you want.Yes, I know about HPCC,
but I hadn t found the time to searchthis until now. But
probably one of these days I will try tosee what happens with
HPCC, although I often wonder ifa beginner like me can
\survive\ among those HP gurus! :-)> good
luck!Alex====Bonjour,Perso, je commande pas de mat\.8eriel
ailleurs quıen CEE. Trop risqu\.8e \avec lespb de douanes et
de TVA...Sans parler de guarantie et service apr\.8fs vente.
En plus, je \pr\.8ef\.8ere payerma TVA en France ou en tout
cas en CEE. Question de principe dıun habitantde la vieille
Europe :-)Ce que jıaimerai : un bon vieux magasin pas du tout
virtuel ou je peuxtoucher la b\.90te vers
LilleGilles1g37giu.m7uyd4xhvg7oN%thomas-ml@deniau.org...>> >
> Pouvez pr\.8eciser les URL de ces deux sites ?> >
http://www.educalc.net et http://www.samsoncables.com>>
Attention aux frais de douane...>> Beware, the customs may
charge *a lot*...>> --> Thomas Deniau> \Unix is user
friendly. Itıs just selective when choosing friends.\====I
too like the 49+, but disagree that the keyboard issue is
minor.If it were just a matter of using greater force to get
the response, ok. \Butthe fact that the key clicks down, yet
no action is taken is a serious \errorfor a calculator.Whilst
HP should be given credit for bothering to upgrade the HP49 to
thisfaster model, they have added no real improvements as far
as the algorithmsgo - for example an improved plot or CAS.
The least they could do is makesure the input/output
interface works ok. At least they got the output
\right:-)dave> Whether you should buy it is really up to
you... but the few issues that> exist are minor. The keyboard
\problems\ are really just a matter of> those of us who are
used to the softer 48G/GX keyboard getting used to> the 49G+
keyboard, which is stiffer. Sure, itıs annoying, but itıs>
nothing to worry about, just something to get used to. The
screen> glitches have no actual impact, just a little ŝicker
every so often.> Other than that, the only glitches I know of
are software errors, the> most serious of which (battery
drain) was solved in the latest ROM. I> wouldnıt worry about
it from a quality perspective...>> > Should I buy the 49g+?>
> I want to, but there seem to be a lot of bugs and a lot of
\weird\> > things, and other not so good comments. I
understand products have> > bugs from time to time, I mean,
usually when you buy a software it was> > some bug here or
there, and then a patch of update Ŝxes it.> > But it might be
different with a calculator (I donıt know a lot about> > them,
and specially about HP calcs), but I bought the TIıs voyage
200> > when it came out and it has done wonders for me, but I
personaly wan> > to use a HP calculator, and well, I want this
49g+ to do the trick.>====I might be inclined to agree with
you if I could get mine to click without registering, but
when I try I cannot... the only keyboard issues I have other
than not pressing hard enough are that I sometimes
accidentally double-press the alpha key, locking it on
(minor), and I often hit enter instead of + since the
arithmetic keys are shifted up from where the 48 had them,
which is quite annoying, but just a matter of not being used
to the keyboard layout.The only way I have found of pressing
a key and getting it to only go partially down is to press it
slowly, at an angle from the top... If I press the key
straight on or from the side/bottom, or even quickly from the
top, it either clicks and registers or doesnıt move. If I
press slowly from the top, I can get it to slowly press but
thereıs no click as it doesnıt go down suddenly... itıs
possible to press a key only partially this way, but I have
yet to duplicate a click with no keypress registering after
several minutes of intentionally trying to do so.> I too like
the 49+, but disagree that the keyboard issue is minor.> If it
were just a matter of using greater force to get the response,
ok. \But> the fact that the key clicks down, yet no action is
taken is a serious \error> for a calculator.> Whilst HP
should be given credit for bothering to upgrade the HP49 to
\this> faster model, they have added no real improvements as
far as the \algorithms> go - for example an improved plot or
CAS. The least they could do is make> sure the input/output
interface works ok. At least they got the output \right> :-)>
> dave> > > > > >>Whether you should buy it is really up to
you... but the few issues that>>exist are minor. The keyboard
\problems\ are really just a matter of>>those of us who are
used to the softer 48G/GX keyboard getting used to>>the 49G+
keyboard, which is stiffer. Sure, itıs annoying, but
itıs>>nothing to worry about, just something to get used to.
The screen>>glitches have no actual impact, just a little
ŝicker every so often.>>Other than that, the only glitches I
know of are software errors, the>>most serious of which
(battery drain) was solved in the latest ROM. I>>wouldnıt
worry about it from a quality perspective...>>>>>>>Should I
buy the 49g+?>>>I want to, but there seem to be a lot of bugs
and a lot of \weird\>>>things, and other not so good comments.
I understand products have>>>bugs from time to time, I mean,
usually when you buy a software it was>>>some bug here or
there, and then a patch of update Ŝxes it.>>>But it might be
different with a calculator (I donıt know a lot about>>>them,
and specially about HP calcs), but I bought the TIıs voyage
200>>>when it came out and it has done wonders for me, but I
personaly wan>>>to use a HP calculator, and well, I want this
49g+ to do the trick.>>> > ====I should add mine is a CN331
model that came with ROM 1.20.> I might be inclined to agree
with you if I could get mine to click > without registering,
but when I try I cannot... the only keyboard issues > I have
other than not pressing hard enough are that I sometimes >
accidentally double-press the alpha key, locking it on
(minor), and I > often hit enter instead of + since the
arithmetic keys are shifted up > from where the 48 had them,
which is quite annoying, but just a matter > of not being
used to the keyboard layout.> > The only way I have found of
pressing a key and getting it to only go > partially down is
to press it slowly, at an angle from the top... If I > press
the key straight on or from the side/bottom, or even quickly
from > the top, it either clicks and registers or doesnıt
move. If I press > slowly from the top, I can get it to
slowly press but thereıs no click > as it doesnıt go down
suddenly... itıs possible to press a key only > partially
this way, but I have yet to duplicate a click with no
keypress > registering after several minutes of intentionally
trying to do so.====I wonder how widespread this problem
really is? I have had my 49G+ for \threedays and have
absolutely no problem with missed entries. The keys press
alittle harder than I am used to, but when they click, they
register. MyJohn> I too like the 49+, but disagree that the
keyboard issue is minor.> If it were just a matter of using
greater force to get the response, ok.But> the fact that the
key clicks down, yet no action is taken is a seriouserror>
for a calculator.> Whilst HP should be given credit for
bothering to upgrade the HP49 to \this> faster model, they
have added no real improvements as far as thealgorithms> go -
for example an improved plot or CAS. The least they could do
is make> sure the input/output interface works ok. At least
they got the outputright> :-)>> dave>>>>> > Whether you
should buy it is really up to you... but the few issues
\that> > exist are minor. The keyboard \problems\ are really
just a matter of> > those of us who are used to the softer
48G/GX keyboard getting used to> > the 49G+ keyboard, which
is stiffer. Sure, itıs annoying, but itıs> > nothing to worry
about, just something to get used to. The screen> > glitches
have no actual impact, just a little ŝicker every so often.>
> Other than that, the only glitches I know of are software
errors, the> > most serious of which (battery drain) was
solved in the latest ROM. I> > wouldnıt worry about it from a
quality perspective...> >> > > Should I buy the 49g+?> > > I
want to, but there seem to be a lot of bugs and a lot of
\weird\> > > things, and other not so good comments. I
understand products have> > > bugs from time to time, I mean,
usually when you buy a software it \was> > > some bug here or
there, and then a patch of update Ŝxes it.> > > But it might
be different with a calculator (I donıt know a lot about> > >
them, and specially about HP calcs), but I bought the TIıs
voyage 200> > > when it came out and it has done wonders for
me, but I personaly wan> > > to use a HP calculator, and
well, I want this 49g+ to do the trick.> >>>====> I wonder
how widespread this problem really is? I have had my 49G+
forthree> days and have absolutely no problem with missed
entries. The keys press a> little harder than I am used to,
but when they click, they register. My>Fantastic, John!Maybe
you have a revised model?CN331...and CN334...are from a
different week,so there is hope that the kb issue was just
the Ŝrst batch(and even not all of them)Any others with ROM
1.22 and better kb?====thanks for the comments>Whether you
should buy it is really up to you... but the few issues that
>exist are minor. The keyboard \problems\ are really just a
matter of >those of us who are used to the softer 48G/GX
keyboard getting used to >the 49G+ keyboard, which is
stiffer. Sure, itıs annoying, but itıs >nothing to worry
about, just something to get used to. The screen >glitches
have no actual impact, just a little ŝicker every so often.
>Other than that, the only glitches I know of are software
errors, the >most serious of which (battery drain) was solved
in the latest ROM. I >wouldnıt worry about it from a quality
perspective...>>> Should I buy the 49g+?>> I want to, but
there seem to be a lot of bugs and a lot of \weird\>> things,
and other not so good comments. I understand products have>>
bugs from time to time, I mean, usually when you buy a
software it was>> some bug here or there, and then a patch of
update Ŝxes it.>> But it might be different with a calculator
(I donıt know a lot about>> them, and specially about HP
calcs), but I bought the TIıs voyage 200>> when it came out
and it has done wonders for me, but I personaly wan>> to use
a HP calculator, and well, I want this 49g+ to do the
trick.====I agree. I used a 49G for years, and dealt with its
share of problems \(mostnotably its slowness). The 49g+
addressed all of my major complaints withthe 49G.The keyboard
is not bad, and I love the rest of it features. I am
verysatisŜed, and I think once the initial compaints slow
down, youıll Ŝnd alot of other happy g+ owners.For what itıs
worth, I recommend it. Iım not going back to my 49G without
\aŜght.I also own a TI-89, but basically never use it. Once
you become \comfortablewith RPN and spend some time with the
HP, I think youıll like it. Do spendsome time, however, as it
is very easy to get frustrated early. Youıll \missout if you
quit early.> thanks for the comments>>>> >Whether you should
buy it is really up to you... but the few issues that> >exist
are minor. The keyboard \problems\ are really just a matter
of> >those of us who are used to the softer 48G/GX keyboard
getting used to> >the 49G+ keyboard, which is stiffer. Sure,
itıs annoying, but itıs> >nothing to worry about, just
something to get used to. The screen> >glitches have no
actual impact, just a little ŝicker every so often.> >Other
than that, the only glitches I know of are software errors,
the> >most serious of which (battery drain) was solved in the
latest ROM. I> >wouldnıt worry about it from a quality
perspective...> >> >> Should I buy the 49g+?> >> I want to,
but there seem to be a lot of bugs and a lot of \weird\> >>
things, and other not so good comments. I understand products
have> >> bugs from time to time, I mean, usually when you buy
a software it was> >> some bug here or there, and then a
patch of update Ŝxes it.> >> But it might be different with a
calculator (I donıt know a lot about> >> them, and specially
about HP calcs), but I bought the TIıs voyage 200> >> when it
came out and it has done wonders for me, but I personaly wan>
>> to use a HP calculator, and well, I want this 49g+ to do
the trick.>====> I also own a TI-89, but basically never use
it. Once you become \comfortable> with RPN and spend some
time with the HP, I think youıll like it.I presume you know
about the RPN interface for the TI-89?--Bhuvanesh====>
Similar to what you described> in another post, Iım getting
some funny looking Ŝles when displayed> on the 49G+ Ŝler but
everything appears normal on my Mac.These Ŝles are normally
invisible to the user (of the Mac). Yoe maysafely upgrade the
ROM from the SD-card, but you must not touch thoseMac-Ŝles,
anyway.> Should I go> ahead and attempt the ROM upgrade
anyway or will this possible do> something serious to the
calculator?Just go ahead!Michael-- -= Michael Hoppe
<www.michael-hoppe.de>, <mh@michael-hoppe.de> =------====>
Just go ahead!> Well I did and my 49G+ locked up each time
displaying a message thatsays something like \No Card, Error
in reading card\. Iım not surewhat to try next. The card
seems to read Ŝne on my Mac and on aneighborıs PC (which said
that the card was FAT formatted). I guessIıll keep playing
around with this.Tom====Iım a neophyte at programming the
49g. I have done simple functions and \somekeyboard
assignments so far.Iıd like to be able to take a list of
something. Lets say materials \density.object1 numberobject2
number.object3 numberetc.Have it stored in a variable (but it
would be a function I think)press a softkey, my list pops up,
scroll the list, press enter (or anothersoftkey) and have the
number appear on the top of the stack..Anyone have a template
for me to follow for doing this in user rpl? Orwhich help
manual I need to read.Perhaps itıs too advanced for an
afternoonıs fun? Or already been done in \away that I can
easily use?Al...====You can create the next two (2) little
programs in UserRPL, as follow: -3 SF 2 FIX\MODIFY DATA\ {
{\D1\\Data D1\0 } { \D2\\Data D2\0 } { \D3\\Data D3\0 } {
\D4\\Data D4\0 } { \D5\\Data D5\0 } { \D6\\Data D6\0 } {
\D7\\Data D7\0 8 } { } } { 2 }mike DUP IF INFORM THEN OBJ->
DROPıD7ı STO ŒD6ı STOıD5ı STO ŒD4ı STOıD3ı STO ŒD2ı STOıD1ı
STO ŒD1ı RCLıD2ı RCL ŒD3ı RCLıD4ı RCL ŒD5ı RCLıD6ı RCL ŒD7ı
RCL 7->LIST Œmikeı STOCLLCD STD ENDSave this with a name,
p.e. : MODIFYDATANow create a other .p.e. : NEWDATA -3 SF 2
FIX\NEW DATA\ { {\D1\\Data D1\0 } { \D2\\Data D2\0 } {
\D3\\Data D3\0 } { \D4\\Data D4\0 } { \D5\\Data D5\0 } {
\D6\\Data D6\0 } { \D7\\Data D7\0 8 } { } } { 2 }{ } DUP IF
INFORM THEN OBJ-> DROPıD7ı STO ŒD6ı STOıD5ı STO ŒD4ı STOıD3ı
STO ŒD2ı STOıD1ı STO ŒD1ı RCLıD2ı RCL ŒD3ı RCLıD4ı RCL ŒD5ı
RCLıD6ı RCL ŒD7ı RCL 7->LIST Œmikeı STOCLLCD STD ENDNote:
First charge the DATA with NEWDATA; next step, change the
valueswith MODIFYDATAMiguel Angel CAPORALINI HERK
(M.A.C.H.)***************************************************
*************************\****> Iım a neophyte at programming
the 49g. I have done simple functions and \some> keyboard
assignments so far.> > Iıd like to be able to take a list of
something. Lets say materials \density.> > object1 number>
object2 number.> object3 number> etc.> > Have it stored in a
variable (but it would be a function I think)> > press a
softkey, my list pops up, scroll the list, press enter (or
\another> softkey) and have the number appear on the top of
the stack..> > Anyone have a template for me to follow for
doing this in user rpl? Or> which help manual I need to
read.> > Perhaps itıs too advanced for an afternoonıs fun? Or
already been done in \a> way that I can easily use?> >
Al...====Unfortunately HP does all the work here, so I doubt
itıll Ŝll anafternoon:-).dave{{object1 number}{object2
number}{object3 number}} @L1 Stack/<<\title\SWAP1 @number
that gets initial highlight - if =0 no object canbe selected,
view onlyCHOOSEDROP/>>number @L1 Stack> Iım a neophyte at
programming the 49g. I have done simple functions andsome>
keyboard assignments so far.>> Iıd like to be able to take a
list of something. Lets say materialsdensity.>> object1
number> object2 number.> object3 number> etc.>> Have it
stored in a variable (but it would be a function I think)>>
press a softkey, my list pops up, scroll the list, press
enter (or \another> softkey) and have the number appear on
the top of the stack..>> Anyone have a template for me to
follow for doing this in user rpl? Or> which help manual I
need to read.>> Perhaps itıs too advanced for an afternoonıs
fun? Or already been done \ina> way that I can easily use?>>
Al...>>====Iıve made a few changes made to the programs,
directory structure etc on \theHp49G+ and wanted to (as
painless as possible) transfer to the Hp49G.First problem is
that I canıt do a backup (via Conn4x) from the G+ - itworks
Ŝne from the G though. Donıt know if Iım making a mistake, or
itıs ageneral issue.Anyway then tried another approach -
copied a HP49G+ archived backup from \SDcard to PC - its
fast! The problem then was to get it to the G. Tried amanual
download (XRecv) and drag-and-drop, via Conn4x. In both cases
it wastransfered to the calc as a directory structure - I
suppose thats whatssupposed to happen. Still it messed up my
last idea for doing this - anyothers would be gratefully
xreceived.dave====Apart from speed? No.> For those who have
the 49G with itıs skimpy manual, can the 49G Plusmanual> be
used as a substitute? Are there signiŜcant differences in
theoperation> of the 49G Plus and 49G? Thx.>>>>====> >> > >
Some people have a slight problem with the keyboard. They can
learn \to> > > press a little harder.> > > >> >> > I donıt
agree. This keyboard causes a lot of mistakes and slows down>
X> ???> I tested some calculators (49G+) on users with various
backgrounds> and NONE of them hit the keys so that there would
be mistakes> Looks like only an old HP 48 user is going get
some missesold HP 48 User yesyesyes HP 48 SX 1989> I should
try more people - you need a light touch.> Hmmm....maybe
because the situation and the calc is new to them> people
tend to press the keys carefully?> This needs more testing>
PS: Only some calcs have these slight problems with kb> BUT
almost every *old* hp user is going to have some trouble> so
I agree that it has to be Ŝxed....I think it could be Ŝxed,
so it should. once I paid 300$ for the HP48 SX. I donıt
regret one of them.Stefan====Dear Vali, It is easy to test
the calculator. Just follow these steps in order.1. Install
batteries. Be careful to use the correct polarity as
marked.2. Turn power on by pressing the ON switch. Itıs in
the lower leftcorner.3. With the unit on, a. Press and hold
the ON key with your left hand. b. Simultaneously press and
hold the F1 and F6 keys with yourright hand. These are the
keys at both ends of the top row of keys. c. You now have all
three keys pressed down at the same time.4. Release both the
F1 and F6 keys at the same time.5. Now release the ON key.6.
You will see a menu of choices appear in the display. It
looks likethis: 1. LCD 2. Key 3. Flash 4. SRAM 5. IRDA 6. USB
7. Card 8. Power 9. Print 0. Buzzer +. IR -. EMI A. AUTOTEST
ON. Reboot7. In the list above,1 means \Press the 1 key to
test the LCD Display.\2 means \Press the 2 key to test all
the keys in the keyboard.\3 means \Press the 3 key to test
the built-in ŝash ROM.\4 means \Press the 4 key to test the
built-in SRAM.\5 means \Press the 5 key to test the Infrared
communications.\ (This cannot be used with only one
machine.)6 means \Press the 6 key to test the USB
communications.\ (This only works if you have installed the
USB cable between the 49g+ and a PC. You will also have to
have installed the USB drivers.)7 means \Press the 7 key to
test the SD card.\ (This only works with an SD card inserted
into the slot at the bottom of the 49g+.)8 means \Press the 8
key to test power consumption.\ (I think this is what it
means. My machine passed this test even with ROM image
version 1.20.)9 means \Press the 9 key to test communications
with the printer.\ (This will only work with a printer
connected.)0 means \Press the 0 key to test the beep.\ (This
also has a section to adjust the pitch of thebeep.+ means
\Press the + key to test the IR port.\ (I donıt know the
difference between this test and \#5)- means \Press the - key
to test for electro-magnetic interference(?).\ (This is
intriguing to a ham radio operator, but Idonıt know how this
test works.)A means \Press the A switch to run all these
tests automatically.\ON means \Press the ON key to Reboot the
calculator.\ (This only works to reboot after running the
manual tests. It doesnıt work after running the Aautotests.\
Iım sorry to have to admit this, but I cannot make the
calculator stoprunning the autotests once I have them
started. The only thing that worksfor me is to open the
battery compartment and pull out one of the \batteries.Since
Iım a mechanical engineer, this should surprise nobody. We
always tryto come up with a solution like this one. Here is
one other thing you might want to know. Here in the USA
thecalculator and its book, manual, batteries, etc. are
enclosed in a surroundof very heavy clear plastic, not a box.
You can see the items inside, butyou cannot touch them. The
only way to open the surround is to use either astrong knife
or a very sharp and strong pair of scissors. The stores must
\dothat here in the US because theft is such a big problem.
If your friend wants to try out the calculator before he buys
it foryou, I am almost certain that he will not be permitted
to do so because hewould have to cut the heavy plastic open
Ŝrst to get the calculator out. The way some of us solve this
problem here is Ŝrst to buy thecalculator, then, if the store
will permit you to do it, open the \calculatorthere in the
store, put batteries into it, and test it there. Most of us,
though, buy the calculator, take it home, open it and runthe
tests there. Only if we are then dissatisŜed with the
calculator do wetake it back to the store and request either
a replacement or a refund ofthe purchase price we have paid.
If it is within two weeks after buying thecalculator, we do
not accept a request from the store to return it to
themanufacturer. We insist that the store replace the
defective unit with \otherunits they have in the store. Best
of luck to you, Vali.Jim
Chumbley____________________________________to tell this guy
to test the calculator: before I get it. Iım interested in
the display problem, keyboard,: ŝickering and if there are
other bugs, which are and how to test: against.====Is there
anyway to test the CPU speed. It was one of the self tests
onDave====To get to the self test menu press the ŒONı key and
the ŒDı key,marked Œ2D/3Dı above it in blue. The ON-A-F
combination results in amemory clear. To exit the test menu
press ŒONı & ŒCı.rdb.> b. Simultaneously press and hold the
F1 and F6 keys with your> right hand.> These are the keys at
both ends of the top row of keys.> c. You now have all three
keys pressed down at the same time.> 4. Release both the F1
and F6 keys at the same time.> 5. Now release the ON
key.====NEVER use ON-D on the 49g+ unless you need to format
the SD card! Allof its tests are more easily accessed via
ON-F.Thatıs right; there are TWO self-test menus built into
the hp49g+, notonly ON+D but also ON+F. They are as
follows:ON+D menu---------1. LCD2. KEY3. FLASH4. SRAM5.
IRDA6. USB7. CARD8. BUZZER9. FORMAT (Formats the SD card w/o
warning!!!)0. AUTOTEST (same as pressing ON+E)The only way to
exit this menu is ON+C.ON-F menu---------1-7: same as above8.
POWER9. PRINT0. BUZZER+. IR-. EMIA. AUTOTESTON. REBOOT (no
need to press ON-C to exit).A complete write-up about all
these would be greatly appreciated. Icannot Ŝgure out the
difference between the IRDA and IR tests, andthe USB and EMI
tests.-Joe-==== > NEVER use ON-D on the 49g+ unless you need
to format the SD card! All > of its tests are more easily
accessed via ON-F. > > Thatıs right; there are TWO self-test
menus built into the hp49g+, not > only ON+D but also ON+F.
They are as follows: > > ON+D menu > --------- > 1. LCD > 2.
KEY > 3. FLASH > 4. SRAM > 5. IRDA > 6. USB > 7. CARD > 8.
BUZZER > 9. FORMAT (Formats the SD card w/o warning!!!) > 0.
AUTOTEST (same as pressing ON+E) > The only way to exit this
menu is ON+C. > > ON-F menu > --------- > 1-7: same as above
> 8. POWER > 9. PRINT > 0. BUZZER > +. IR > -. EMI > A.
AUTOTEST > ON. REBOOT (no need to press ON-C to exit).be a
repeating self-test like on the 49G, but now that I think
about it,the ON- operations changed from the 48 series to the
49G, so weshouldnıt be too surprised at more changes. > A
complete write-up about all these would be greatly
appreciated.Agreed! > I > cannot Ŝgure out the difference
between the IRDA and IR tests,Maybe \IR\ would be for the
\Serial IR\ as used for communicationsbetween the 48 series
calculators, or for the \Red Eye\ IR for printingto the
82240A/B? > and > the USB and EMI tests.Maybe EMI stands for
\Electro-Magnetic Interference\? Could it be thatit checks
for sensitivity to EMI, or whether it causes too much EMI,
orperhaps both at once?-- James====: To get to the self test
menu press the ŒONı key and the ŒDı key,: marked Œ2D/3Dı
above it in blue. The ON-A-F combination results in a: memory
clear. To exit the test menu press ŒONı &
ŒCı.____________________________ The ON A F combination
results in a memory clear only when yourelease the ON key
Ŝrst followed by the A F combination. Interestingly the \No
thank you very much\ response to the question \youare asked
about making an attempt to recover memory should be a
depressionof the F6 key, but THIS DOES NOT WORK. F6 is
ignored until something \else,say F5 is pressed Ŝrst.
Apparently the F5 means nothing to the machineand serves only
the function of releasing the lock-out of the F6 key. The ON A
F works as described in my earlier postings if you
Ŝrstreleasethe A F combination before releasing the ON
key.the self-testand the effects of the ON F3(C) keys to kill
the otherwise runawayself-test.Jim Chumbley====I have
experimented with this and have found the following:ON-D
calls up one self test menu with ten options, exit with
ON-C.ON-F calls up another self test menu with 14 options,
exit the menuwith ON. Exit a test with ON-C. If you press
ON-A-F, depending on theorder in which they are pressed and
the order in which they are thenreleased, you may get the
ON-F self test menu or the recover memoryquestion, and
depending on how the recover memory condition isıinvokedı F6
will clear it or it may require F5 then F6. Very
strange.Perhaps someone else would care to conŜrm this
behaviour?rdb.
<GSwlb.189162$0v4.14638199@bgtnsc04-news.ops.worldnet.att.net
>====> a. Press and hold the ON key with your left hand.> b.
Simultaneously press and hold the F1 and F6 keys with your>
right hand.> These are the keys at both ends of the top row
of keys.> c. You now have all three keys pressed down at the
same time.> 4. Release both the F1 and F6 keys at the same
time.> 5. Now release the ON key.Hu? The autotest is accessed
with On-A-F? Strange...> Iım sorry to have to admit this, but
I cannot make the calculator \stop> running the autotests
once I have them started. The only thing that works> for me
is to open the battery compartment and pull out one of the
\batteries.> Since Iım a mechanical engineer, this should
surprise nobody. We always \try> to come up with a solution
like this one.Maybe you could try the On-C combination (try
On-F3).-- -----Dis tu nous l\.89ches un peu ? Cıest un sujet
assez important pour quıon enparle, peu importe le groupe.
Cıest \.88 cause de gens comme toi si cıest \lamerde sur le
net. Tes le\.8dons de n\.8etiqu\.8equette, tu peux te les...
\OK?-+- Ghost in : Guide du Neuneu dıUsenet - Terrorisme
neuneulectuel -+-====::: > a. Press and hold the ON key with
your left hand.: > b. Simultaneously press and hold the F1
and F6 keys with \your: > right hand.: > These are the keys
at both ends of the top row of keys.: > c. You now have all
three keys pressed down at the same \time.: > 4. Release both
the F1 and F6 keys at the same time.: > 5. Now release the ON
key.:: Hu? The autotest is accessed with On-A-F?
Strange...*** As Wayne pointed out in a parallel posting with
yours, ON F6 works \inexactly the same way. No need to press
the F1 and F6 keys together.:: > Iım sorry to have to admit
this, but I cannot make the calculatorstop: > running the
autotests once I have them started. The only thing thatworks:
> for me is to open the battery compartment and pull out one
of thebatteries.: > Since Iım a mechanical engineer, this
should surprise nobody. We alwaystry: > to come up with a
solution like this one.:: Maybe you could try the On-C
combination (try On-F3).***Yes! You are exactly right. Both
you and Wayne pointed this out for me.:: -- : -----: Dis tu
nous l\.89ches un peu ? Cıest un sujet assez important pour
quıon \en: parle, peu importe le groupe. Cıest \.88 cause de
gens comme toi si cıest \la: merde sur le net. Tes le\.8dons
de n\.8etiqu\.8equette, tu peux te les... \OK?: -+- Ghost in
: Guide du Neuneu dıUsenet - Terrorisme neuneulectuel
-+-:====> Dear Vali,> It is easy to test the calculator. Just
follow these steps in order.> 1. Install batteries. Be careful
to use the correct polarity as \marked.> 2. Turn power on by
pressing the ON switch. Itıs in the lower left> corner.> 3.
With the unit on,> a. Press and hold the ON key with your
left hand.> b. Simultaneously press and hold the F1 and F6
keys with your> right hand.> These are the keys at both ends
of the top row of keys.> c. You now have all three keys
pressed down at the same time.> 4. Release both the F1 and F6
keys at the same time.> 5. Now release the ON key.> 6. You
will see a menu of choices appear in the display. It looks
like> this:Are you sure about this keystroke sequence? On the
HP48 those would bethe \clear memory\ keystrokes. Isnıt it
just ON F6 for the self-test?> Iım sorry to have to admit
this, but I cannot make the calculator \stop> running the
autotests once I have them started. The only thing that
works> for me is to open the battery compartment and pull out
one of the \batteries.> Since Iım a mechanical engineer, this
should surprise nobody. We always \try> to come up with a
solution like this one.On the 48, ON C (I guess that would be
ON F3 on the 49) stops theself-test.-- Wayne Brown (HPCC
#1104) | \When your tailıs in a crack, you
improvisefwbrown@bellsouth.net | if youıre good enough.
Otherwise you give | your pelt to the trapper.\\e^(i*pi) =
-1\ -- Euler | -- John Myers Myers, \\Silverlock\====When I
EXPAND the expression (A+B+C)^3, I
obtain:C^3+3.C^2.B+3.C.B^2+B^3+(3.C^2+6.C.B+3.B^2).A+(3.C+3.B
).A^2+A^3Do you know how to:1) expand the remaining
parenthesis?2) factorize for any given monom, e.g.
A.B.C?YvesPS: I am running rom 1.19-6 on the HP49G.====> What
about HP Solve algorithm?? I love it and wonder how it
worksDec 79, Aug 80, May 83 and Aug
87.http://library.hp41.org/LibView.cfm?Command=List&
CategoryID=7====> Several of us worked on these, which are
available free at the links> below.> > using the 49G+,
ranging from solving differential equations to doing> base
conversions.> > Students and educators>
http://www.hp.com/calculators/graphing/49gplus/educators.html
> > Scientists and Engineers>
http://www.hp.com/calculators/graphing/49gplus/
scientists.html> > Business & Finance>
http://www.hp.com/calculators/graphing/49gplus/business.html>
> Real Estate>
http://www.hp.com/calculators/graphing/49gplus/
realestate.html> > Hope these are useful. I view these as a
good thing HP is> doing...since they didnıt have to do these
at all. If you Ŝnd> > (Sorry if this ends up getting posted
more than once...my news server> I usually post from has been
really acting up).> > GeneVery nice!Martin Cohen====I
understood that an IR transfer is possible between the 49G+
and the 48GX.I havenıt been able to make it work. All I am
trying to do is transfer avariable or program from one to the
other. I have set both machines forKermit (since GX wonıt do
Xmodem) and IR. They are not able to connect.John==== > I
understood that an IR transfer is possible between the 49G+
and the \48GX. > I havenıt been able to make it work. All I
am trying to do is transfer a > variable or program from one
to the other. I have set both machines for > Kermit (since GX
wonıt do Xmodem) and IR. They are not able to connect.The 48G
series can do Xmodem. See the XRECV and XSEND commands.--
James====Just an speculation: Could HP 49G+ use IRDA while
48G uses HP-IR (non IRDAcompatible)?Can somebody conŜrm or
deny it?\James M. Prange\ <jmprange@i-is.com> escribi\.97 en
el mensaje> > I understood that an IR transfer is possible
between the 49G+ and the48GX.> > I havenıt been able to make
it work. All I am trying to do is transfera> > variable or
program from one to the other. I have set both machines \for>
> Kermit (since GX wonıt do Xmodem) and IR. They are not able
to \connect.>> The 48G series can do Xmodem. See the XRECV
and XSEND commands.>> -- > James>====> Just an speculation:
Could HP 49G+ use IRDA while 48G uses HP-IR (non \IRDA>
compatible)?> > Can somebody conŜrm or deny it?Well I know it
doesnıt use the now defunct and worthless HP Jetsend IR
protocol my HP-1000 printer uses.====Yup. Figured that out
right after I posted. However, it doesnıt work withXmodem
either. Or at least, I canıt make it work.John> > I
understood that an IR transfer is possible between the 49G+
and the48GX.> > I havenıt been able to make it work. All I am
trying to do is transfera> > variable or program from one to
the other. I have set both machines \for> > Kermit (since GX
wonıt do Xmodem) and IR. They are not able to \connect.>> The
48G series can do Xmodem. See the XRECV and XSEND commands.>>
-- > James>====The funny thing is if you buy through
www.hp.com the shipping issales tax in Delaware, buying
through the compaq side of the sitethe 49g+ with shipping is
cheaper than the calculator aloneanywhere else Iıve found.
Canıt wait for it to arrive now! Mike>>>
http://www.hp.com/calculators/>> >> >I just (10/20/03)
ordered the 49g+ from hp at the $149 price.>>Estimated ship
date is 10/23.>>Cost:>>49g+: $149.99>Tax (CA):
12.79>Shipping: 5.15>--------------->Total: $167.93>>Martin
Cohen>>====> And now I have it!!!!> Give us a report on that
keyboard please.====>>And now I have it!!!!>>> > > Give us a
report on that keyboard please.So far, the keyboard seems
Ŝne. I turned on the click, though I usually(in the past)
have it off. No presses missed yet (Ŝngers of steel!!!).I
played with the fast3d plotting using the instructions just
added toHPıs site. One funniness - when I tried sin(x+y), it
did not look like a function - seemed to be 2 surfaces.I saw
the \quake\ once so far.All in all, I like it.However, I
think HP made a mistake in using USB instead of rs-232.IMHO,
the speed gain does not make up for the capability
loss.Martin Cohen====> However, I think HP made a mistake in
using USB instead of rs-232.> IMHO, the speed gain does not
make up for the capability loss.I completely disagree with
you there. Capability loss? I havenıt used a \computer with
serial for YEARS!Next youıll want a ŝoppy drive.====> > >>And
now I have it!!!!> >>> > > > > > Give us a report on that
keyboard please.> So far, the keyboard seems Ŝne. I turned on
the click, though I usually> (in the past) have it off. No
presses missed yet (Ŝngers of steel!!!).The keys have an
easier click than on HP49G(less stiff). TheydeŜnitely have
the same feel as on the HP48 (clicks a little bitlouder and
sounds hollow). A funny detail about the keys is that thetop
6 function keys have a steeper slant (due to the shorter
width ofthe keys--where the top and bottom edges have the
same heights as theother keys, the short width made the keys
slant more). As a result,the top edge gap between the case
and the key is wider, and you cansee a part of the inside of
the keyboard through the gap. Weird. Also,the arrow keys are
somewhat loose: you can move the keysup/down/left/right a
little bit when you press on the arrow keys, likethe keys on
a TI calculator, but less dramatic.Dave====> > >>And now I
have it!!!!> >>> > > > > > Give us a report on that keyboard
please.> So far, the keyboard seems Ŝne. I turned on the
click, though I usually> (in the past) have it off. No
presses missed yet (Ŝngers of steel!!!).Sometimes, my key
press doesnıt register. I donıt know whether itısbecause I
didnıt press it hard enough, or because the system is
busywith something (no busy aunciator though) and didnıt
catch my keypress, no matter how I pressed the key for the
few times that Ipressed over and over.When you turn on the
calc, the screen displays junk for half a second,then turns
to normal, like on the old HP48, except itıs much
moreapparent this time. You can adjust the contrast of the
anunciatorstogether with the rest of the screen when you
press ON/+/- to adjustthe contrast. And this time, itıs an
all black LCD. When you turn theclock on, thereıs screen
ŝickering on the menu bar. After upgradingto ROM 1.22, the
ŝickering becomes a little bit less noticable. Andupgrading
the ROM only takes a minute.The calc is much faster. However,
it still takes a moment to load somemenus with user input
values in them like the plot setup or plotwindow setup. The
wait for plotting wireframe graphs is much shorter,maybe more
or less half a minute. There is also a few seconds waittime to
graph regular 2-D graphs. Scrolling through a list in
thebrowser and cursor movement are the same speed as before.
Overall, the49g+ feels more like a computer. Itıs fast and
snappy inputing dataand going through choose boxes.The
speaker is quieter than in previous calcs. The error beep is
morehigh pitched. Other beeps like the wrong key beep and
alarm have thesame tones.The inside of the pouch is cloth
while the outside is leather with theHP logo on the lower
right of the ŝap.Dave====>>I canıt get it NOT to work. I
tried deliberately touching ever so lightly>and increasing
pressure slowly but then the key clicks down and
registers.>For every click I get the proper character or
function. No problems at \all.I can easily and repeatedly
press the backspace key lightly enough tocause a click, but
no keypress and no speaker keyclick.Pete M. WilsonGamewood,
Inc.wilsonpm@gamewood.net====Update to my calc. I brought it
to work where we have ŝorescent lightingand the ŝicker is
present. I dinıt notice it under my home incandescentlights.
Also the range on my IR interface is about 1\ not the 18\
itıssupposed to be. I get perfect results every time at 1\
but garbage at anylonger distances.Tom Lake====> Well, Ŝnally
I can post to my own poll! Mitch and to all other posters to
this thread, thanks, very useful. Ifor sure will upgrade
after watching this thread for a few days.====How does the
unit conversion compare to the one on the 48GX?Better/Worse,
Quicker/Slower??====If you switch to RPN + Softmenus, itıs
the same interface...Naturally since the calculator is faster
the conversions will technically be so as well, but there
isnıt exactly a noticable delay doing unit conversions on the
48...> How does the unit conversion compare to the one on the
48GX?> Better/Worse, Quicker/Slower??====> How does the unit
conversion compare to the one on the 48GX?> Better/Worse,
Quicker/Slower??I donıt quite understand the question...The
49G already had a few more unitsand the 49g+ is always the
fastest aroundJust remember to switch to RPN==== > I should
add that in all cases, where you say the 15-digit result ends
\in > exactly ...500, > in fact the Sticky Bit is set -
meaning the exact result is ...500xxxx, > meaning > Œnonzero
digits trailingı. A subsequent PACKSB will then round *up*,
of > course, > since the result is *not* exactly ...500, but
Œlarger thanı, and it \doesnıt > matter by how much. > Thatıs
how the system distinguishes between exactly ..500 and not: by
\the > SB. > > If you debug (using Jazz, on a 48GX) the
following, you can see for > yourself: > > 262144. INV
(result before PACKSB is called: 3.81469726562500 E-6,
\Sticky > Bit clear.) > Thatıs exactly the midway case, so
PACKSB will perform round to even and \end > up with
3.81469726562E-6. > > 1998. INV, on the other hand, will show
5.00500500500500 E-4, Sticky Bit > set. > PACKSB will
interpret that correctly as Œlarger thanı and subsequently
\round > *up*.I see your points about how even if the last 3
digits of the 15 digitmantissa are 500, the calculator may
\know\ that there must be anon-zero digit somewhere beyond
that, and therefor quite correctly roundthe 12th digit up.
Very good design.But what about my example
of:%%1.000000000025E0 %%>% returns %1.00000000003I was hoping
that the calculator would round to even in that case, butit
rounded up instead. Does that mean that the sticky bit was
\stuck\set from a previous operation? I wonder when the
calculator clears thesticky bit.-- James====> > I should add
that in all cases, where you say the 15-digit result ends
\in> > exactly ...500,> > in fact the Sticky Bit is set -
meaning the exact result is ...500xxxx,> > meaning> >
Œnonzero digits trailingı. A subsequent PACKSB will then
round *up*, \of> > course,> > since the result is *not*
exactly ...500, but Œlarger thanı, and it \doesnıt> > matter
by how much.> > Thatıs how the system distinguishes between
exactly ..500 and not: by \the> > SB.> >> > If you debug
(using Jazz, on a 48GX) the following, you can see for> >
yourself:> >> > 262144. INV (result before PACKSB is called:
3.81469726562500 E-6, \Sticky> > Bit clear.)> > Thatıs
exactly the midway case, so PACKSB will perform round to even
and \end> > up with 3.81469726562E-6.> >> > 1998. INV, on the
other hand, will show 5.00500500500500 E-4, Sticky \Bit> >
set.> > PACKSB will interpret that correctly as Œlarger thanı
and subsequently \round> > *up*.>>I see your points about how
even if the last 3 digits of the 15 digit>mantissa are 500,
the calculator may \know\ that there must be a>non-zero digit
somewhere beyond thatThatıs the purpose of the \sticky\ bit;
to know if any non-zero digits got \shifted off tothe right.,
and therefor quite correctly round>the 12th digit up. Very
good design.>>But what about my example
of:>>%%1.000000000025E0 %%>% returns %1.00000000003It looks
like %%>% rounds up; why donıt you also try
%%1.00000000000035E0>>I was hoping that the calculator would
round to even in that case, but>it rounded up instead. Does
that mean that the sticky bit was \stuck\>set from a previous
operation? I wonder when the calculator clears the>sticky
bit.The sticky bit is cleared before every arithmetic
operation where it would \subsequently beneeded to do proper
rounding (12 form result is where \proper\ rounding to \even
is done).The Saturn arithmetic routines, starting with the
HP71, never have done \\proper\ roundingto even when 15 form
numbers are the result.The HP71 just truncates always when
returning a 15 form number.Apparently the HP48 ALWAYS (that
is, not paying attention to even or odd) \rounds atrailing
50000000... (all the digits after the 5 which are still in
the \machine are zero,and the sticky bit is clear) up after
an addition, but truncates after a \multiplicationwhen
returning a 15 form number.====>I Ŝnally caught the dramatic
49g+ \display earthquake\ on Ŝlm! It>doesnıt happen during
most garbage collections, but once in a while it>does, and
when it does itıs quite startling!>I also noticed my
calculator has changed itıs initial clear of thedisplay since
I installed an SD card. Without the SD card, it showsblack
vertical stripes (thick, about 5) across the display
thatquickly fade to the regular display. With the SD card
installed, theyfade to a reverse black stripe pattern
sprinkled with random on/offpixels, which then clears and
becomes the regular display.Pete M. WilsonGamewood,
Inc.wilsonpm@gamewood.net====> I Ŝnally caught the dramatic
49g+ \display earthquake\ on Ŝlm! It> doesnıt happen during
most garbage collections, but once in a while it> does, and
when it does itıs quite startling!> > These two images are
the same, but the Ŝrst is smaller for those with> low
bandwidth:> > 62K, 562 x 459:>
http://holyjoe.net/images/earthquake_s.jpg> > 142K, 1125 x
918:> http://holyjoe.net/images/earthquake.jpg> > Notice the
absolute rightmost three pixel columns: they are whatıs>
usually the left-most three pixel columns, shifted up one
pixel. If> you look carefully, youıll see (top to bottom) \R\
(from the RAD> annunciator), \{\ (the path delimiter), the
status area line, the> numbers 7 down to 1, and a menu
label.> > However, I canıt make heads or tails of the
\garbage\ pixels. Can> you?> > -Joe-I just saw my Ŝrst
\quake\. Glad I was forwarned.Martin Cohen====> > Trying to
view the result of the SERIAL command, I hit down arrow to> >
edit the string. I then used SKIP-> to try to see the end.
When the> > cursor was on the C... at the end of the display,
pressing SKIP->> > caused the cursor to appear at the end of
the ..., and the string was> > not correctly scrolled!>> Same
in 49G 1.19-6>Have you ever tried to change the sign to
negative on a numberwhen the display has an Œalgebraicı long
enough to cause a scroll?====> > The 49G+ and 48Gii seem to
have some similarities, but must be \differentin some> >
aspects. What are the primary differences, and what would
make onechoose one> > over the other?>>
http://www.hpcalc.org/images/graphcalccomp.pdf sums up
graphing> calculator comparisons nicely. Differences that I
found worth noting> are the following (in order of 48Gii
followed by 49G+):> - processor: 48MHz vs. 75MHz (I havenıt
heard any benchmarks between> the calcs though, which would
be more valuable)> - display size: 131x64 vs. 131x80> -
serial port: RS232 vs. USB> - expansion port: 49G+ only> -
ŝash rom: 49G+ only> - memory: 512K vs. 512K+0.8M128K vs
384K+768K (1280K~1.3M)port 1: 49G+ onlycorrections byPS: the
net RAM is even lower. The 48gII has less than 1/10th of the
memory (without 128MB SD) or less than 1/1000th when 128MB SD
card is used in the 49g+====I was wondering if any of you
could help me out. I just purchased a HP-12Ccalculator from
ebay. It came in the original package, but the calculatoris
made in China and there is no serial number on it. The manual
appearsgenuine, but the calculator takes one lithium battery,
not the three \LR44ıs.Does HP really sell calculators made in
China with no serial numbers?====>> I was wondering if any of
you could help me out. I just purchased aHP-12C> calculator
from ebay. It came in the original package, but the
\calculator> is made in China and there is no serial number
on it. The manual appears> genuine, but the calculator takes
one lithium battery, not the threeLR44ıs.>> Does HP really
sell calculators made in China with no serial numbers?>Yes
and no!Yes, the HP calcs has been made in Malaysia,
Indonesia, China, Singapore?No, you should not get a repair
unit without the serial hand-engraved==== > >> >>I was
wondering if any of you could help me out. I just purchased a
> > HP-12C > >>calculator from ebay. It came in the original
package, but the \calculator >>is made in China and there is
no serial number on it. The manual \appears >>genuine, but
the calculator takes one lithium battery, not the three > >
LR44ıs. > >>Does HP really sell calculators made in China
with no serial numbers? >> > > Yes and no! > Yes, the HP
calcs has been made in Malaysia, Indonesia, China,
\Singapore?And letıs not forget the good olı U.S. of A., and
Iım almost positiveBrazil as well. > No, you should not get a
repair unit without the serial hand-engravedSome of the
earlier models had the serial number on a sticker, but
arecent production unit without a serial number does seem
rather out ofthe ordinary. I was under the impression that
even \pre-production\units were marked as such. I wonder
whether perhaps this unit somehow\accidentally\ got out of
the factory in someoneıs pocket or lunchbucket. But a unit
that somehow just didnıt get a serial number in thefactory
due to a mix-up wouldnıt be too terribly surprising.
Sometimes aproduction process doesnıt run quite as smoothly
as weıd like.Maybe a \collectorıs item\?Is it a \12C\ or a
\12C Platinum\?As for the batteries, Iım under the impression
that they switched fromthree LR44s to one lithium battery
quite a while ago.-- James====This is a 12C non platinum
model.It seems very cheaply made; the keys rattle when I
lightly shake it. Not \atall as well made as my 1 year old
12C made in Malaysia. If this is \genuine,it is a real
disappointment and HP really has gone way downhill.====>
Joeıs PDQ scout will be very interesting - just imagine if
it> can casually deliver fractions in \size\ order ...Thatıs
what it does, although the user always has the option
oŝeaping over the intermediate convergents, which is useful
when thereare a huge number of them (half as many as each
huge partialquotient).> ... or even just count the sum total
of all possible fractions> - that would be AMAZING!!Hmmm...
Hadnıt thought of that. Itıd be easy to add a Total Numberof
Best Fractions feature. What should I call it: The
HutchinsIndex? TONY(x)? What number has the LARGEST such
value? Itıs NOTthe golden ratio, which has the FEWEST
possible intermediateconvergents (namely, zero!). My guess it
that itıd be whatever hasthe GREATEST possible number of
intermediate convergents, somethingperhaps like
sqrt(10^2n+1). Interesting...Oh, I have an idea! (Ouch! Ouch!
I *hate* it when that happens!) Since the sequence of best
fractions is deterministic, each has aŜxed ordinal number.
For example, the sequence for pi, with indicesand CF
expansion, is:1: 3/1 {3}2: 13/4 {3 4}3: 16/5 {3 5}4: 19/6 {3
6}5: 22/7 {3 7}6: 179/57 {3 7 8}7: 201/64 {3 7 9}etc.So, when
the Fraction Scout shows 201/64, it should also show \7\ asits
Hutchins Index, no? And maybe the CF expansion too, just for
fun.-Joe-==== -=[ Thu, 23.10.03 1:57 p.m. +1300 (NZDT) ]=-in
message ID <87233f9e.0310221604.27f3e501@posting.google.com>
:> > Joeıs PDQ scout will be very interesting - just imagine>
> if it can casually deliver fractions in \size\ order ...> >
Thatıs what it does, although the user always has the> option
of leaping over the intermediate convergents,Great!> which is
useful when there are a huge number of them (half> as many as
each huge partial quotient).Always a new challenge - hehe Iıll
have to think about theparenthetical statement above ... I get
the idea - when wesuddenly hit a huge partial quotient, rising
up like Mt Sinai,we Ŝnd many intermediate convergents before
it. And yes theycan stretch back to the midpoint. > > ... or
even just count the sum total of all possible> > fractions -
that would be AMAZING!!> > Hmmm... Hadnıt thought of that.Iım
not surprised as even my brain started bursting when Ithought
of how many there might be. I did try adding them upin the
.500000000001 case but got rather confused.> Itıd be easy to
add a Total Number of Best Fractions feature.Wow, really? I
would Ŝnd that really really interesting.> What should I call
it: The Hutchins Index? TONY(x)?LOL! You are welcome to call
it the Hutchins Index :) Really Iwould take that as an honour
to be included along with otherHıs like Horn, Hurwitz, and
also Huysegoms - I canıt wait tosee Wernerıs new
non-iterative method.> What number has the LARGEST such
value?Oh no, another challenge :)I wonder if there is one
such number.Root 3 I always found remarkable> Itıs NOT the
golden ratio, which has the FEWEST possible> intermediate
convergents (namely, zero!).LOL! My thoughts exactly, it is a
sheer desert - not a largepartial quotient in sight :)> My
guess it that itıd be whatever has the GREATEST possible>
number of intermediate convergents, something perhaps like>
sqrt(10^2n+1). Interesting...Very. > Oh, I have an idea!
(Ouch! Ouch! I *hate* it when that> happens!)Hehe. An
interrupt! No, no, inspiration :)> Since the sequence of best
fractions is deterministic,I was never quite sure about that -
but yes it is. > each has a Ŝxed ordinal number. For example,
the sequence> for pi, with indices and CF expansion, is: > 1:
3/1 {3}> 2: 13/4 {3 4}> 3: 16/5 {3 5}> 4: 19/6 {3 6}> 5: 22/7
{3 7}> 6: 179/57 {3 7 8}> 7: 201/64 {3 7 9}> etc.Ahha! I
never did the CF expansion for the intermediate ones.That
almost gives me another clue as to how to Ŝnd them. > So,
when the Fraction Scout shows 201/64, it should also show>
\7\ as its Hutchins Index, no? Yes, I like that! > And maybe
the CF expansion too, just for fun.Yes - the more interesting
numbers, the better, IMHO :)It adds to the educational
value.--Tony HutchinsWellingtonNew Zealand#69 Are you part of
the solution, or the precipitate?====OK all the examples work
without bisecting.It has come to a point where calculating
the simple continued fractiontakes up the bulk of the work in
some cases (like PI), so Iıll combineit all in one program.
The worst case should then be solved in less than \onesecond
as promised. (.500000000001 is solved in 0.7 secs but is not
theworst case any more)Werner====> OK all the examples work
without bisecting.Iım VEY impressed! I tried to do the same,
but kept running into theproblem of roundoff error sometimes
giving false results. Bisectionavoids that problem because it
only uses integer linear combinations. Have you let both the
old and new programs run on random numbers untilthey Ŝnd
different answers? Iım very much looking forward to
seeingyour code. If it always works, Iıll modify the \PDQ
Algorithm\accordingly and include you as co-inventor in the
PDQ patent.Warning: If you calculate the \backwards jump\ to
the appropriateintermediate convergent using the same method
as my DEC2FRAC program(on Goodies Disk #3), it will jump to
the wrong answer in somepathological cases when zero error is
speciŜed. I very much hopethat this is not the
case!-Joe-====>> > OK all the examples work without
bisecting.>> Iım VEY impressed! I tried to do the same, but
kept running into the> problem of roundoff error sometimes
giving false results. Bisection> avoids that problem because
it only uses integer linear combinations.> Have you let both
the old and new programs run on random numbers until> they
Ŝnd different answers? Iım very much looking forward to
seeing> your code. If it always works, Iıll modify the \PDQ
Algorithm\> accordingly and include you as co-inventor in the
PDQ patent.Naaah!Since Werner doesnıt use bisecting at allhe
has a different and *better* algorithm. (-:You name will not
be included in his patent.You have already been obsoleted,
sorry! )-:<name withheld on authorıs request><who would be
stupid enought to get a banna from Pope>(-;==== -=[ Thu,
23.10.03 07:41 a.m. +1300 (NZDT) ]=-in message ID
<44ec85ff.0310220520.21a6d18e@posting.google.com> :> OK all
the examples work without bisecting.You cracked it! > It has
come to a point where calculating the simple> continued
fraction takes up the bulk of the work in some> cases (like
PI), so Iıll combine it all in one program. The> worst case
should then be solved in less than one second> as promised.
(.500000000001 is solved in 0.7 secs but is> not the worst
case any more)Fascinating!! Yes the .500000000001 is really
very short onpartial quotients.CONGRATULATIONS WERNER! I
really look forward to seeing your all-in-one program.--Tony
HutchinsWellingtonNew Zealand#185 To live is so startling it
leaves little timefor anything else. Emily Dickinson====> OK
all the examples work without bisecting.> It has come to a
point where calculating the simple continued fraction> takes
up the bulk of the work in some cases (like PI), so Iıll
combine> it all in one program. The worst case should then be
solved in less thanone> second as promised. (.500000000001 is
solved in 0.7 secs but is not the> worst case any more)>
WernerAwesomeThat is much faster than my srpl version (197.5
bytes, #476Bh) with .87 \sec.on the hp49-Gjermund====X> on
the hp49-Do you mean the 48gII *without* the Flash
memory???PS: I have a 49g- (aka 48gII), and a 49G, plus a hp
49g+====> -=[ Sat, 18.10.03 9:37 p.m. +1300 (NZDT) ]=-> > >
in message ID <bmpjm0$cf$1@news.worldonline.be> :> > > Nono
-*you* have won it.> > All I did was copycat your work and
write it the way I> > am used to, and I do have a fair bit of
Œmini-challenge> > experienceı ;-)> > There should be a
library of mini-challenges - must be some> great coding tips
in those answers.> > And you did much more than copycat - you
gave me many puzzles> eg - I wondered about> > @ stack: R[i+1]
R[i] a[i+1] 0.> > where you use a[i+1] as the maximum integral
N - it took me a> while to conŜrm this. IMHO your bisection
code is the BEST :)> I never quite realised how to use the
stack this way.The challenge isnıt over yet - even if you
have won it already.I did a bit too much copying..Bisection
is unnecessary - I can determine the fraction directly.Itıll
take me awhile to get the algorithm sorted out for all
casesand program it, Iım quite certain to get the timing of
.500000000001under 1 second on anything (48SX, to name the
slowest).Wait and see,Werner==== -=[ Thu, 23.10.03 07:29 a.m.
+1300 (NZDT) ]=-in message ID
<44ec85ff.0310220418.14dcc23f@posting.google.com> :> The
challenge isnıt over yet - even if you have won it already.>
I did a bit too much copying..> Bisection is unnecessary -
Ahha! Yes, I looked at that before I did bisection but
thealgebra sort of put me off, and I was in a hurry<G>. The
errorincreases as K increases. I had anequation for K
involving an explicit error like .5E-12 and ithad a q^2 like
in Hurwitzıs formula. I didnıt like having tocode in an
explicit error.... but maybe it is not necessary!!> I can
determine the fraction directly.This will be fascinating to
see!!!> Itıll take me awhile to get the algorithm sorted out
for all cases> and program it, Iım quite certain to get the
timing of .500000000001> under 1 second on anything (48SX, to
name the slowest).> Wait and see,I will. A pleasure is in
store :)--Tony HutchinsNew Zealand====> > > I like the 179/57
[approximation to pi].> > I guess pi 2.9 PDQ will give that
one :)> > Input:> > 2: 3.14159265359> 1: 2.9> > Output:> > 4:
179.> 3: 57.> 2: X: 2.90595659819> 1: H: -.955278116548Well,
Iıve written a program that gives the same approximation,
namely179/57, based on the Stern-Brocot-tree, in 0.9609
seconds. But is veryslow at converting 0.500000000001. How
long does your version need toconvert that beast?Michael --
-= Michael Hoppe <www.michael-hoppe.de>,
<mh@michael-hoppe.de> =------==== -=[ Wed, 22.10.03 11:21
p.m. +1300 (NZDT) ]=-in message ID
<1g3897k.141xa5w1i0fv9cN%mh@michael-hoppe.de> :> Well, Iıve
written a program that gives the same approximation, namely>
179/57, based on the Stern-Brocot-tree, in 0.9609 seconds.
But is very> slow at converting 0.500000000001. How long does
your version need to> convert that beast?Just a second on the
49g+, from memory.Also, from memory I remember trying a Farey
series aftermy impression was it might take foreveron this
.500000000001.I must have a look at this Stern-Brocot though
- it sort oŝooks a similar type of approach to the Farey?That
.9609 seocnds is pretty quick.Have you read back in the
thread? - timings were published Ithink.--Tony
HutchinsWellingtonNew Zealand#294 The unknown always passes
for the marvelous.Tacitus====> Thatıs often said, even by
trustworthy mathematicians, but itıs simply> not true. Proof:
Using the continued fraction method, the next best>
approximation to pi after 22/7 is 333/106. But that totally
misses> 179/57, which lies between them both in size and in
closeness to pi. > Go ahead, check it. See what I mean?Not
quite. If rounding errors are not to heavy, I get: 22/7 =
3.1428571... 333/106 = 3.1415094... 179/57 =
3.1403508...179/57 lies between 22/7 and 333/106 in
size?Michael -- -= Michael Hoppe <www.michael-hoppe.de>,
<mh@michael-hoppe.de> =------==== -=[ Wed, 22.10.03 8:57 p.m.
+1300 (NZDT) ]=-in message ID
<1g379hi.1vd3y481ac0n2sN%mh@michael-hoppe.de> :> 179/57 lies
between 22/7 and 333/106 in size?179 lies between 22 and 333
57 lies between 7 and 106--Tony HutchinsWellingtonNew
Zealand#56 A clean desk is a sign of a cluttered desk
drawer.==== > > <snip> > > > And maybe even more unfair if
theyıve visited > > >
\http://www.smb.compaq.com/sp_main.asp?hp_url=
searchresults.asp?store_id=8&sea\rch_id=164&dept_id=1001&dsc=
calculator > > > > > and read: \2.5 MB of total memory - 512K
of RAM and 2MB of ŝash \ROM\. I > > donıt doubt that their
advertising is true, but theyıve neglected > > mentioning how
much memory is used by the operating system. > > I notice that
http://www.hp.com/calculators/graphing/49gplus/ says: > > \2.5
MB of total memory - 512K of RAM and 2MB of ŝash ROM (800KB >
available to the user)\ > > I suppose that we might quibble
about whether 800KB is accurate, and > whether the 800KB is
ŝash memory only, or does it include port RAM and > user RAM,
and no doubt it will vary with the ROM version, But at least >
it makes it clear that nowhere near the total memory will be
available > to the user.Hey! It changed! Now it says:\2.5 MB
of total memory - 512KB of RAM and 2MB of ŝash ROM (330KB
RAMand 800KB ŝash ROM available to the user)\Could it be that
someone at HP actually cares about whatıs posted onthis
newsgroup? Or is it just a coincidence?-- James====> > You
can add up to 128MB SD into your system.> > So the 256KB,
512KB and 1GB SD cards wonıt work in the 49g+?> > Tom LakeIıd
love to know myself. I have heard of the 256MB (assuming kb
wasmeant to mean mb) cards at least report the correct size
in Ŝler, butapparently no one speaking up on here that Iıve
heard has ranextensive tests in the short time that they have
been out. I await aword on the other 2 sizes, but would love
to point out the fact thatmy graphing calculator has more
memory than the ram of all but thenewest PCs Iıve been around
lately.Ed SuttonP.S. I admit what an idiot I feel like when my
1GB card search failedas searches like pricewatch.com showed
nothing for 1024kb sd memorycard =/====> > So the 256KB,
512KB and 1GB SD cards wonıt work in the 49g+?> >> > Tom
Lake>> Iıd love to know myself. I have heard of the 256MB
(assuming kb was> meant to mean mb)Oops! KB, MB whatever!
8-)> P.S. I admit what an idiot I feel like when my 1GB card
search failed> as searches like pricewatch.com showed nothing
for 1024kb sd memory> card =/seen any for sale either.Tom
L====Responses follow::: Iım glad to hear that. Was the card
preformatted, or did you format it: in a card reader/writer,
or did you format it with the 49g+?*** I tried the write/read
cycle on the SD card right out of the box.Panasonic must have
shipped the units correctly programmed becauseeverything
worked correctly with no intervention required by me.:: I
take it the cluster size is 4KB? Store a small Ŝle and see
how much: less the Ŝler reports for port 3.:***It will take
me until Monday or Tuesday to do this correctly, Jamesbecause
I am going out of town to hear my daughter sing.: Please do
report here if you run into any problems.:: > The real
question, I think, for the larger cards is going to be:How: >
many directory entries does the SD card allow to be made?
Sometimes \you: > can run out of available directory entries
long before you run out oftrue: > space on the card/disk.::
Agreed, particularly as most Ŝles from a calculator could
easily Ŝt: into a single cluster with slack left over.::
Assuming that the card is formatted FAT16, there are of
course 2^16: (65,536) possible numbers, #0000h through
#FFFFh. Of course each entry: in the FAT is two bytes. My
reference book tells me that #0000h is used: for free
clusters, #FFF0h-#FFF6h are reserved, #FFF7h for bad
clusters,: and #FFF8h-FFFFh for the end of a cluster chain.
The Ŝrst two entries: in the FAT (which would otherwise be
used for cluster #0000h and #0001h): are reserved. The Ŝrst
entry is a copy of the media descriptor byte: followed by an
FF byte, and the second entry is two FF bytes, so #0001h:
isnıt available either. So that tells me that 18 numbers
(#0000h,: #0001h, and #FFF0-FFFFh) arenıt available for
indexing clusters, leaving: me with the possibility of up to
65,518 clusters, which places a maximum: on the number of
Ŝles.:: Iım not sure how exactly an SD card follows the
format of a disk, but on: a disk, the Ŝrst sector begins the
boot record (which, among other: things, contains information
as to how the disk is formatted), which: ordinarily takes only
a single sector, then comes two copies of the FAT,: and then
the root directory. It seem to me that each FAT could take
up: to 256 sectors, but the actual FAT size depends on how
many clusters the: disk actually has. The root directory of a
hard disk allows up to 512: entries, and each entry is 32
bytes, so thatıs 32 sectors. Thatıs: potentially up to 545
sectors used up before any data is stored.: Beginning with
the Ŝrst sector after the root directory, the data area:
begins. Since the Ŝrst two entries in the FAT are reserved,
the Ŝrst: cluster is numbered #0002h instead of #0000h
(otherwise the Ŝrst two: clusters could never be used).
Unless the cluster size is 1 sector (512: bytes) (a 32MB or
smaller disk), Iıll very likely have at least one: sector at
the end left over which wonıt make up a full cluster, and so:
canıt be used.:: For a 128MB disk, Iım starting out with
262,144 sectors. If I assume: that 545 sectors are used up by
the boot record, FATs, and root: directory, that leaves me
261,599 sectors for the data area. Since the: cluster size
for a 128MB disk would ordinarily be 4 sectors (2KB), that:
leaves me with 65,399 clusters, which indeed requires each
FAT to be 256: sectors, so at most 65,399 Ŝles.:: So it turns
out that the possible numbers from 16 bits, less the: reserved
numbers, wasnıt the limiting factor after all.:: But wait, the
root directory has only 512 entries, so for that many: Ŝles,
Iım going to need at least one subdirectory, which takes at
least: one cluster. Ok, suppose that I use all 512 root
directory entries for: subdirectories, each using at least
one cluster; that leaves me with at: most 64,887 clusters
left for Ŝles. Each entry in a subdirectory take: 32 bytes,
so accommodating that many Ŝles means that the
subdirectories: would take up at least 2,076,384 bytes, or
1,014 clusters. That would: leave me at most 64,385 clusters
for Ŝles, but 64,385 Ŝles requires: only 1,007 clusters for
subdirectories, so would leave me 64,392: clusters for Ŝles,
which still requires 1007 clusters for: subdirectories.:: So
assuming that Iıve Ŝgured out everything correctly (a
dangerous: assumption), it would seem that not counting
subdirectories, I could: have up to 64,392 relatively small
(<=2KB) Ŝles on a 128MB hard disk. I: guess that the same
would be true of a 128MB SD card, except that a 2KB: Ŝle from
a calculator would be \relatively large\.:: As for how many
Ŝles could Ŝt on your 256MB card, I think that Iıll: leave
that as an exercise for the reader.:: Of course, if FAT32
were used, it would seem that, on extremely large: cards,
roughly 4,000 times as many Ŝles would be possible. On small:
cards, doubling the size of the FATs would be a disadvantage.
The: question that I have is::: How large does the card (or
HD) have to be to make it advantageous to: use FAT32?:: -- :
James:Sorry not to be able to Ŝnish this test and report back
until Monday orTuesday, James.Jim Chumbley====James, I cannot
remember how to format an SD card. Iıve tried to Ŝnd it in
\allthe manuals for the 49g+, but I canıt Ŝnd it there. Could
you please \remindme how to format the little card?Jim
Chumbley====>James,> I cannot remember how to format an SD
card. Iıve tried to Ŝnd it in \all>the manuals for the 49g+,
but I canıt Ŝnd it there. Could you please \remind>me how to
format the little card?>Jim Chumbley>Press On-D then pick
Format from the menu. Requires ROM v1.22Pete M.
WilsonGamewood, Inc.wilsonpm@gamewood.net====listened to the
loose marbles rolling around inside my cranium. It
trulyastounds me what I am capable of forgetting. Again,
though, many, manythanks for reminding both James and me of
how to format the SD card. Wereally appreciate it.Jim
Chumbley:: Press On-D then pick Format from the menu.
Requires ROM v1.22==== > James, > I cannot remember how to
format an SD card. Iıve tried to Ŝnd it in \all > the manuals
for the 49g+, but I canıt Ŝnd it there. Could you please
\remind > me how to format the little card?Sorry Jim, my 49g+
isnıt scheduled for delivery until tomorrow evening,so I donıt
have one to experiment with. And even if i did have the 49g+,I
havenıt even ordered an SD card yet.when I searched the
downloaded PDF documentation, I didnıt Ŝnd much onSD cards.
That the 49g+ can use an SD card, where it shows up in
theŜler, how to store things to it and recall them from it,
but nothing onwhat sizes it can use or how to format it.Maybe
someone else will be good enough to respond. Offhand, my
advicewould be that if it ainıt broke, donıt Ŝx it.Is this
your 256MB card?-- James==== HA!! I thought I was the only
one. Now you have a chance to join the group(It is comprised
of all of us who got no sleep the night before the 49g+
\wasdelivered out of anticipation, and then got no sleep the
night it wasdelivered from Ŝnally getting to play with it.)
Serves us both right! You are so right about the
documentation. I couldnıt Ŝnd much in thereabout the SD cards
at all.: Maybe someone else will be good enough to respond.
Offhand, my advice: would be that if it ainıt broke, donıt Ŝx
it.***Usually the very best advice, but I wanted to determine
whether my 49g+would format the big SD card successfully, and
I wanted to run this testsometime when a failure would not
cause any loss of real (maybe that shouldsay \valuable\)
data. It worked well. Itıs just my own brain that cannot
\betrusted.***:: Is this your 256MB card?:***Yes, it is. I
found the Panasonic brand for sale at WalMart for just at$98.
Its cost in dollars per megabyte of capacity was half that of
smallercards such as the 32MB card, and thatıs why I picked
the largest card theyhad for sale. For convenience, I suspect
that an 8MB or 16MB card may provesuperior, if only in the
speed of sorting, repairing a directory, andcompleting
searches for an erasure. 256MB also makes little sense unless
HPenables a directory/subdirectory structure in a future ROM
release.Jim Chumbley====> HA!!> I thought I was the only one.
Now you have a chance to join the group> (It is comprised of
all of us who got no sleep the night before the 49g+was>
delivered out of anticipation, and then got no sleep the
night it was> delivered from Ŝnally getting to play with it.)
Serves us both right!> You are so right about the
documentation. I couldnıt Ŝnd much inthere> about the SD
cards at all.Hereıs the Google entry:displayed. If you select
it, it will format your installed SD card to \FAT16.I tried
it, and it works Ŝne.Also the SD card recognition bug has
been Ŝxed, you donıt have to take outand re-insert the card
any more to use it.Thomas====Dear Tom,can speak for both
James and me when I say that we might have had very
badevenings without your information. We really appreciate
it.Jim Chumbley: Hereıs the Google entry::[snips]: I was very
pleased to see that they added the capability to format
SDcards: with this new release. Just press ON-D, and a format
option will be: displayed. If you select it, it will format
your installed SD card toFAT16.: I tried it, and it works Ŝne.