11.3.15.1.14. numpy.tril_indices_from¶

numpy.tril_indices_from(arr, k=0)[source]¶

Return the indices for the lower-triangle of arr.

See tril_indices for full details.

Parameters:

arr : array_like

The indices will be valid for square arrays whose dimensions are the same as arr.

k : int, optional

Diagonal offset (see tril for details).