A22
 

really ? plz dont forget to post ...
Etustarr
IĞm searching for a program to solve Fourier-, Laplace-, and 

Z-Transformations. 
IĞm using the HP48G. Can anybody help me? 

News suchen, lesen, schreiben mit http://newsgroups.web.de
better serves your needs.
Greetings,
Nick.
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The inquirer had asked for a technique to take a gradient.  The gradient is
a vector and, as you pointed out, you can't put symbolic elements in a 
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...because I returned an old broken SX and I got a new 49 for ~110$.
I'm not sure hp-italy accepts a French guarantee.
--
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I have never met a single land surveyor since about 1981 who uses TI
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My father sent me his HP49G from California,
with a (mumble) 16 (mumble) ROM version, which
has libraries 256 and 257 and the HpMad Tetris
easter egg, but not the MINEISBETTER tetris
easter egg.  It has a couple of libraries, but
not extable.
This last lacking, combined with my currently
trouble.  I've managed to compile some simple
SysRPL programs, but no ML programs.  The MASD
document on hpcalc.org assumes extable, and
doesn't give enough information for the strictly
ML stuff to be useful yet.  The Using the HP49G
for System RPL Programming document also assumes
extable, and mostly talks about libraries I can't
get.  The source for extable assumes some kind
of PC-based assembler, and I don't know enough
about the language to translate it to something
my calculator can understand.
So, what do I do?  Am I the only person trying
to write ML and SysRPL with only the HP49G as
my tool?  How can I provide the functionality
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to the 49 but still using unsupported pointers)
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The software part of the kit is available for download free at
http://www.hp.com/cposupport/swindexes/hp49ggraph24252_swen.html (choose 
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At hpcalc.org there is a file Xref4849.zip which gives the entry pts by
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OK, thanks!  I actually grabbed that file yesterday, with some other
documentation, but I didn't know what I had.  With it and the source
for extable, I might be able to implement an extable myself, which would
really be ideal.  Yes, I'll get the kit soon.  It's really strange
having a ~$200 calculator and then saving a small weekly allowance to
buy accessories for it.
Dennis Straley
 This would seem to indicate a space was used after #1+ rather than the
 #1+_ONE_DO mnemonic required. How are you compiling the program, Jazz or
 HPTools? (think think) guessing Jazz from the syntax error description.
=======================================
KC7CC@HOTMAIL.COM
It does not !  There is no indication of space and i did not put in a space
!
  There are many bugs in Joes text . If one removes the #1+ ...part ,
one gets many more errors such as the SWAP#-  . I've tried all the  -  
chars
,
none work .
  He's obviously a top HP man but his doc's are not .
[more sources snipped]
 
Let me guess: You are trying to enter this program like you would enter
If so, the solution is simple: Use Jazz etc. to compile the program,
it's written in SysRPL not UserRPL. The reason why you got Syntax
Error at #1+ is that everything before can pass as empty tags ::, IDs
(like 'INNERCOMP') and user binary integers (aka HXS, # 5h)...
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Last fall I bought both hard and electronic copies of Dr. Gilberto
Urroz's books  on Engineering Mathematics for the HP49.
     Since that time I have upgraded from Adobe Acrobat 4.0 to 5.0 and
now I can not open the PDF files.
      I get an error message saying a plug-in,  FOPN_FLock for the
security handler  is not available
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I had the same problem and GreatUnpublished didn't answer my request for 
help.
If you still have the compressed files GU00043P.exe (volume 1) and 
GU00044P.exe
(volume 2), copy them into a new directory and run them again. If you don't 

have
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Hoi Harold,
I had the same problem when re-installing Windows and Acrobat.
The solution was to re-install the copies of the books using the
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Yes. I'm been using a USB Serial Converter-UC 310 with no problems. It 

came
with a USB cable, the converter itself, a DB25 to DB9 adapter, and a driver
CD-ROM. It's not listed now, but visit
http://www.cablewholesale.com/catalog/usbadaptors.htm, the 28UC-18000 for 

$24.75
should be sufficient for the calculator, or, if you anticipate a need for 

higher
speed the 29UC-31000 for $41.25 is available. Also you might try web 
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I Got it!!!!!!!!!!
It appears the HP48G does in fact perform numeric differentiation when
generating a Taylor series.  This can be readily used to take
derivatives of
anything that has a derivative even if not symbolically.
As you know, the Taylor series around x=a is generated as follows:
f(x) = f(a+y) = (approx) f(x)|x=a + y*f'(x)|x=a + 1/2*(y^2)*f''(x)|x=a
+ 1/3!*(y^3)*f'''(x)|x=a + ...
So, if we want the (first) derivative at x=a we generate a first order
Taylor series around a and voila, the coefficient of the first order
term is the derivative!  (We can do the same for higher order
derivatives).
For example, lets go back to the function ABS(x).  Lets look at
positive values of x.  So we go into SYMBOLIC, TAYLOR POLYNOMIAL, and
set expression to
'ABS(y+5)'.  VAR:y; ORDER:1; RESULT: Symbolic and go.
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Phooey.  I posted before thinking it through.  The 48G does recognize
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?? well it's not so hard..
Use Google search for:
keywords: Romberg
author  : Meyers
newsgroup: comp.sys.hp48
sort by relevance, and bingo, the first hit:
http://groups.google.com/groups?selm=5m6evd%24o93%244%40news.iastate.edu&out

put=gplain
Werner Huysegoms
Werner Huysegoms
xwerner_huysegoms@my-deja.comx
(delete the leading and trailing x)