Dear all, I just discovered the following - was this a problem in earlier sage versions, too?
See https://github.com/sagemath/sage/issues/37496 Best wishes, Martin sage: m = matrix(GF(3), [[2]]) sage: b = vector(GF(3), [1]) sage: m.solve_right(b) (2) sage: m = matrix(GF(3), [[2]], sparse=True) sage: b = vector(GF(3), [1], sparse=True) sage: m.solve_right(b) --------------------------------------------------------------------------- TypeError Traceback (most recent call last) Cell In[157], line 1 ----> 1 m.solve_right(b) File ~/sage/src/sage/matrix/matrix2.pyx:942, in sage.matrix.matrix2.Matrix.solve_right() 940 else: 941 try: --> 942 X = self._solve_right_nonsingular_square(C, check_rank=True) 943 except NotFullRankError: 944 X = self._solve_right_general(C, check=check) File ~/sage/src/sage/matrix/matrix_modn_sparse.pyx:948, in sage.matrix.matrix_modn_sparse.Matrix_modn_sparse._solve_right_nonsingular_square() 946 if isinstance(B, Matrix): 947 from sage.matrix.special import diagonal_matrix --> 948 m, d = self._solve_matrix_linbox(B, algorithm) 949 return m * diagonal_matrix([QQ((1,x)) for x in d]) 950 else: File ~/sage/src/sage/matrix/matrix_modn_sparse.pyx:1132, in sage.matrix.matrix_modn_sparse.Matrix_modn_sparse._solve_matrix_linbox() 1130 1131 cdef givaro.ZRing givZZ -> 1132 cdef linbox.SparseMatrix_integer * A = new_linbox_matrix_integer_sparse(givZZ, self) 1133 cdef linbox.DenseVector_integer * b = new linbox.DenseVector_integer(givZZ, <size_t> self._nrows) 1134 cdef linbox.DenseVector_integer * res = new linbox.DenseVector_integer(givZZ, <size_t> self._ncols) TypeError: Cannot convert sage.matrix.matrix_modn_sparse.Matrix_modn_sparse to sage.matrix.matrix_integer_sparse.Matrix_integer_sparse -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/ea0ba4cf-83ce-4d85-a742-d5cbb8c4d116n%40googlegroups.com.
