ENH: Return rank 0 for empty matrices in matrix_rank (#30422)#31197
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This PR fixes a bug in np.linalg.matrix_rank where empty matrices (previously with 0 rows or 0 columns) would raise a ValueError due to attempting a reduction operation on a zero-size array.
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Backport of #30422.
This PR fixes a bug in
np.linalg.matrix_rankwhere empty matrices(previously with 0 rows or 0 columns) would raise a ValueError due to
attempting a reduction operation on a zero-size array.
Changes include:
matrix_rank.Files modified:
numpy/linalg/_linalg.pynumpy/linalg/tests/test_linalg.pyCloses #30421