What is the function of copy.deepcopy in w = copy.deepcopy(w_in) and why we used it??
and when we removed it and put w = w_in it gives the same output
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Deepcopy is used so as to not change the original values of a matrix or array w_in in case its needed later on in the process or not have weird results. There a few post about deepcopy in this part of the forum you can search about them!
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