Nanakjoth

Fix definition of primitive matrix and clarify Hamilton matrix reference

4

This PR fixes two minor issues referenced in #576: 1. Primitive matrix definition : Updated the condition to say $A^k$ is *positive* for some $k \in \mathbb{N}$, which is the...

Add grid size check for corrupted .grd files (#451)

2

### Summary Add a simple check in `load_oasis_montaj_grid` to raise a clear `ValueError` if the number of grid elements does not match the expected shape. This helps users quickly see...