triu(m, k=0)
Matrix whose elements to return
Diagonal below which to zero elements. k == 0 is the main diagonal, k < 0 subdiagonal and k > 0 superdiagonal.
Return matrix with zeroed elements below the kth diagonal and has same shape and type as m.
Make a copy of a matrix with elements below the kth diagonal zeroed.
>>> from scipy.linalg import triuSee :
... triu([[1,2,3],[4,5,6],[7,8,9],[10,11,12]], -1) array([[ 1, 2, 3], [ 4, 5, 6], [ 0, 8, 9], [ 0, 0, 12]])
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