haojin2 commented on a change in pull request #17904: [Numpy] add: numpy op
trilindices
URL: https://github.com/apache/incubator-mxnet/pull/17904#discussion_r400590050
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File path: python/mxnet/symbol/numpy/_symbol.py
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@@ -2197,6 +2197,87 @@ def tril(m, k=0):
"""
return _npi.tril(m, k)
+@set_module('mxnet.symbol.numpy')
+def tril_indices(n, k=0, m=None):
+ """
+ Return the indices for the lower-triangle of an (n, m) array.
+
+ Parameters
+ ----------
+ n : int
+ The row dimension of the arrays for which the returned
+ indices will be valid.
+ k : int, optional
+ Diagonal offset (see `tril` for details).
+ m : int, optional
+ .. versionadded:: 1.9.0
+
+ The column dimension of the arrays for which the returned
+ arrays will be valid.
+ By default `m` is taken equal to `n`.
+
+
+ Returns
+ -------
+ inds : tuple of arrays
Review comment:
here it should be `tuple of _Symbol` I guess
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