In mathematics and, in particular, functional analysis, convolution is a mathematical operation on two functions f and g, producing a third function that is typically viewed as a modified version of one of the original functions (from wikipedia.com).
I get this picture convolution ilustration from wikipedia. We can ilustrated the convolution process with number. Please check the picture below, I try to create a convolution ilustration. So, we can create C/C++ : Convolution Source Code from this convolution ilustration :
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