numpy.diag(a, k=0) : Extracts and construct a diagonal array
a : array_like k : [int, optional, 0 by default] Diagonal we require; k>0 means diagonal above main diagonal or vice versa.
Main Diagnol elements : [ 1 434 56] Diagnol above main diagnol : [21 3] Diagnol below main diagnol : [63 54]
These NumPy-Python programs won’t run on onlineID, so run them on your systems to explore them
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