I have encountered unusual behaviour with scipy.sparse.linalg.lsqr. I am using the variance reported by LSQR (the estimated diagonals of (A.T@A)^(-1)) but the estimated variance is too low. The level ...
The test suite in conda-forge/arrow-cpp-feedstock#1664 has a single test failure ===== FAILURES ===== _____ test_sparse_coo_tensor_scipy_roundtrip[f2-arrow_type8 ...