mm-3289
===
Subject: FA/FS: Math Cam?
Wireless Internet Camera - 802.11g - DLink: DCS-G900
http://cgi1.ebay.com.au/ws/eBayISAPI.dll?MakeTrack&item=330038842980
===
Subject: A walking Robot
My newest puzzle is about computer programming. The challenge is to
write the shortest possible programme for a robot to move from A to B,
chosing from only four simple instructions. If you appreciate the
puzzle, then please be so kind as to send me your comments and/or
solution.
Have fun with the puzzle !!!
Peter
(click on the Union Jack at
http://home.planet.nl/~p.j.hendriks/ppvdw.htm )
===
Subject: Re: A walking Robot
>> Good morning to all!
> My newest puzzle is about computer programming. The challenge is to
>> write the shortest possible programme for a robot to move from A to B,
>> chosing from only four simple instructions. If you appreciate the
>> puzzle, then please be so kind as to send me your comments and/or
>> solution.
> Have fun with the puzzle !!!
>> (click on the Union Jack at
>> http://home.planet.nl/~p.j.hendriks/ppvdw.htm )
that link seems to go to some other page, I eventually found the puzzle at
http://home.planet.nl/~p.j.hendriks/p151e.htm
but the diagrams were not present.
The original link worked for me, your link doesn't (unless I press the
'weekpuzzel' button).
The puzzle is in Dutch with diagrams. If you click the Union Jack you get 
the
English description, but the diagrams are not repeated on the English page.
Which makes it hard to follow... repeating the diagrams would be relatively
easy, take note Peter.
===
Subject: Re: A walking Robot
> The original link worked for me, your link doesn't (unless I press the
> 'weekpuzzel' button).
it didn't work when I tried it, but it works today.
===
Subject: Re: A walking Robot
>Good morning to all!
My newest puzzle is about computer programming. The challenge is to
>write the shortest possible programme for a robot to move from A to B,
>chosing from only four simple instructions. If you appreciate the
>puzzle, then please be so kind as to send me your comments and/or
>solution.
Have fun with the puzzle !!!
>Peter
>(click on the Union Jack at
>http://home.planet.nl/~p.j.hendriks/ppvdw.htm )
Nice puzzle. No I haven't solved it yet!
===
Subject: integral
does anybody now the answer of the following integral:(indefinite
integral):
int ( exp(x^2) )
===
Subject: Re: integral
> does anybody now the answer of the following integral:(indefinite
> integral):
> 
> int ( exp(x^2) )
There is no elementary antiderivative for exp(x^2), and the definite 
integral from -oo to anything else, as asked for in another post, is not 
a convergent improper integral so has no meaning.
Are you sure you don't mean    Integral[x=-oo..X, exp(-x^2)]  ?
===
Subject: Re: integral
i want its integral from -inf to X
===
Subject: normal dist problem
Assume p(X) is NX(M,Sigma)
X = [x1; x2]
M= [m1; m2]
Sigma = [s1^2   rs1s2;   rs1s2   s2^2]
How can I show that
P(x1) = Nx1(m1,s1^2)     (a marginal density)
I think I should use marginal integral. But it contains an exp(x^2)
expression.
===
Subject: I hate to ask, but
I just missed a Question that was put in this form:
5 @ 3
(L + K) (L - K)
What does the @ symbol mean? and doesn't the L+K and the L-K cancel
each other out?
Someone told me that you just multiply 5*3 to get 15, that is the
answer. Is this correct?
I know this sounds simple, but I am stumped.......Any help you can
===
Subject: Re: I hate to ask, but
> I just missed a Question that was put in this form:
> 
> 5 @ 3
> (L + K) (L - K)
> 
> What does the @ symbol mean? and doesn't the L+K and the L-K cancel
> each other out?
> 
> Someone told me that you just multiply 5*3 to get 15, that is the
> answer. Is this correct?
> 
> I know this sounds simple, but I am stumped.......Any help you can
The @ is probaby just a bad attempt at a multiplication symbol.
5 * 3 is the more common notation.
And (4 + 1) (4 - 1) is probably what is meant by (L + K) (L - K).
===
Subject: Two similar pieces
Good afternoon (in Holland that is) to all!
My new puzzle sounds simple: just cut a shape into two similar pieces.
The question though is: what shape? and how? Please feel free to send
me your solutions !
Have fun with the puzzle !!!
Peter
(click on the Union Jack at
http://home.planet.nl/~p.j.hendriks/ppvdw.htm )