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Re: fast convolving question [message #60632 is a reply to message #60625] Thu, 29 May 2008 12:47 Go to previous messageGo to previous message
Chris[5] is currently offline  Chris[5]
Messages: 16
Registered: May 2008
Junior Member
> But, did you see the error, why:
>
> else (conv)[(i=indarray2[0:sm-1])]=kernel##mat( indsmall+ind(i) )
>
> only works for the first ind(i=0) and then repeats it by using always
> ind(0) instead of ind(i)?
>
> It this a bug or error in code?
>

Both kernel and mat(indsmall+ind(i)) are vectors of length sm. When
you matrix multiply them, the answer is single number. So you are just
asking to fill in conv with the same number at every element given by
i.
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