C complex number usage

[Bruce Labitt]

Thanks, Kent.

It actually did help.  Maybe I'll show up to the January PySig and annoy 
people there...  Do you know if Python (scientific/scipy) is available 
for the CELL processor, aka PS3?  I've got a massively parallel problem 
I need to solve...  My initial look at python was favorable - it appears 
to be higher level than C.

However, right now I need to do this in C...  I'm eventually going to 
use the FFTW libraries to help solve my problem.  But I'm such a lame C 
programmer that this is very painful.  So I'm taking baby steps to try 
to build up the expertise level to the point that I can write something 
useful. :)  (And actually solve the original problem...)

Bruce

Kent Johnson wrote:
> Bruce Labitt wrote:
>> Hopefully a simple question.  I'm trying to write a C program that 
>> uses complex numbers.
>> Hopefully someone can point me in the write direction.  TIA.
>
> If you don't have a specific requirement for C, you might consider 
> learning Python instead.
> ----> python.org :-)
>
> Python has built-in support for complex numbers and the add-on package 
> numpy supports FFT of complex arrays:
> http://numpy.scipy.org/numpydoc/numpy-17.html
>
> Your code would look something like this in Python:
>
> from random import gauss
>
> N = 1024
> mymean = ...
> mystdev = ...
> g = [ complex(gauss(mymean, mystdev), gauss(mymean, mystdev)) for i in 
> range(N) ]
>
> HTH,
> Kent
>