I think it really doesn't get any clearer than this in terms of intent. While I
was adept at calculus-level math 20 years ago, I've forgotten the little I knew
of matrices. This is the first algorithm that has communicated by visual
inspection (to me) exactly what a convolution is.
-Fred
--
Science answers questions; philosophy questions answers.
On Jul 17, 2010, at 3:43 PM, Isaac Hodes wrote:
> double convolve(double *xs, double *is, double *ys){
> int i,j;
> for(i=0; i<len(xs); i++){
> for(j=0; j<len(is); j++){
> ys[i+j] = ys[i+j] + (xs[i]*is[j]);
> }
> }
> return ys;
> }
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