mxnet.np.tril¶
-
tril
(m, k=0)¶ Lower triangle of an array.
Return a copy of an array with elements above the k-th diagonal zeroed.
- Parameters
m (ndarray, shape (M, N)) – Input array.
k (int, optional) – Diagonal above which to zero elements. k = 0 (the default) is the main diagonal, k < 0 is below it and k > 0 is above.
- Returns
tril – Lower triangle of m, of same shape and data-type as m.
- Return type
ndarray, shape (M, N)
See also
triu()
same thing, only for the upper triangle
Examples
>>> a = np.array([[1,2,3],[4,5,6],[7,8,9],[10,11,12]]) >>> np.tril(a, -1) array([[ 0., 0., 0.], [ 4., 0., 0.], [ 7., 8., 0.], [10., 11., 12.]])
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