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Merge pull request #1116 from murrayrm/update_ssmatrix-01Feb2025

Update _ssmatrix and _check_shape for consistent usage
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Richard Murray committed
d2f9a9c54c4484b49b56c63ffbd5be8d16ba34fe
Committed by GitHub <noreply@github.com> on 2/2/2025, 6:57:43 AM