As it turns out after some digging, this is https://github.com/sagemath/sage/issues/28586 and set to "critical" since at least October 2019.
On Wednesday 28 February 2024 at 13:03:44 UTC+1 Martin R wrote: > 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/f2ffb1a6-3a10-4814-a46c-2fc7b938a500n%40googlegroups.com.
