Compute the inverse of a sparse matrix
New in version 0.12.0.
Parameters : | A : (M,M) ndarray or sparse matrix
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Returns : | Ainv : (M,M) ndarray or sparse matrix
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Notes
This computes the sparse inverse of A. If the inverse of A is expected to be non-sparse, it will likely be faster to convert A to dense and use scipy.linalg.inv.