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Re: Differences in the convolution function between IDL and MATLAB [message #72141]

Thu, 05 August 2010 20:53

penteado
Messages: 866
Registered: February 2018

Senior Member
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On Aug 6, 12:28 am, hyunsprk <hyunsoor...@gmail.com> wrote:
> When I use conv() function in MATLAB,
>
> it gives following array,
>
>>> conv(a,c)
>
> ans =
>
> 1 4 10 20 35 56 70 76 73 60 36
>
> when, a=[1,2,3,4,5,6], c=[1,2,3,4,5,6].
>
> Meanwhile, IDL gives following messages,
>
> IDL> print, convol(a,c)
> % CONVOL: Incompatible dimensions for Array and Kernel.
> % Execution halted at: $MAIN$
>
> when, a=[1,2,3,4,5,6], c=[1,2,3,4,5,6].
>
> Why this differences have been occurred? These two softwares have
> difference use of convolution functions?

IDL's help explains well what convol() does. Presumably, Matlab's help
would say what conv() does, so it seems you can compare them.

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