id summary reporter owner description type status priority milestone component resolution keywords cc merged author reviewer upstream work_issues branch commit dependencies stopgaps
23716 multiplication dense x sparse should not use dense multiplication vdelecroix The algorithm for the multiplications `(dense matrix) x (sparse matrix)` or `(sparse matrix) x (dense vector)` is currrently done by first converting the sparse matrix into a dense matrix and then operating on the result. See `sage.matrix.action`. defect new major sage-8.1 linear algebra days88 N/A