the.com/convolution
A mathematical blender that smears one function over another to make something new.
means An operation that combines two functions by sliding one across the other and integrating the overlap at each shift.
from From Latin convolvere, to roll together — convolutus meant coiled or twisted, like the folds of your brain (also called convolutions).
Image filtersEvery blur and edge detector is a convolution.
Neural netsCNNs are named entirely after this operation.
Flip firstYou reverse one function before sliding it.
Fourier trickConvolution becomes simple multiplication in frequency space.