| python Programming Glossary: diagsGet all the diagonals in a matrix/list of lists in Python http://stackoverflow.com/questions/6313308/get-all-the-diagonals-in-a-matrix-list-of-lists-in-python  as np matrix np.array 2 5 3 2 9 6 5 1 3 2 7 3 1 8 4 8 diags matrix 1 .diagonal i for i in range 3 4 diags.extend matrix.diagonal.. 7 3 1 8 4 8 diags matrix 1 .diagonal i for i in range 3 4 diags.extend matrix.diagonal i for i in range 3 4 1 print n.tolist.. i for i in range 3 4 1 print n.tolist for n in diags Output 2 9 5 3 6 3 1 2 5 2 8 7 1 4 3 8 2 3 1 5 5 3 2 6 7 8 9.. 
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