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Using FFTW3 to calculate an Gaussian

Started by jv_ju June 19, 2008
Thanks for the help. 
But why when I increase N, the results curve then get "sharper"? If my N
is larger, that means I have more terms, shouldn't the results look more
like a Gaussian? why it only make the curve narrower than expected? Is it
mean something still wrong with my code?