radial gaussian distribution

[roberto]

Hello,
i have to generate a gaussian distribution of points which depends
only on the distance from a fixed point O, that is i need a radial
gaussian distribution;
may it be useful the definition of the function used in the following:

http://octave.sourceforge.net/index/f/erf_Z.html

??
if possible address me to some documentation useful 

thank you for any help
-- 
roberto
debian sarge, kernel 2.6.8



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