numpy.tril(m, k=0)
[source]
Lower triangle of an array.
Return a copy of an array with elements above the k
-th diagonal zeroed.
Parameters: |
m : array_like, shape (M, N) Input array. k : int, optional Diagonal above which to zero elements. |
---|---|
Returns: |
tril : ndarray, shape (M, N) Lower triangle of |
See also
triu
>>> np.tril([[1,2,3],[4,5,6],[7,8,9],[10,11,12]], -1) array([[ 0, 0, 0], [ 4, 0, 0], [ 7, 8, 0], [10, 11, 12]])
© 2008–2017 NumPy Developers
Licensed under the NumPy License.
https://docs.scipy.org/doc/numpy-1.14.2/reference/generated/numpy.tril.html