diagonal(self, k=0)
Which diagonal to get, corresponding to elements a[i, i+k]. Default: 0 (the main diagonal).
Returns the kth diagonal of the matrix.
numpy.diagonal
Equivalent numpy function.
>>> from scipy.sparse import csr_matrix
... A = csr_matrix([[1, 2, 0], [0, 0, 3], [4, 0, 5]])
... A.diagonal() array([1, 0, 5])
>>> A.diagonal(k=1) array([2, 3])See :
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