Patches by Vladimir.

[ginac.git] / ginac / matrix.h

diff --git a/ginac/matrix.h b/ginac/matrix.h
index 08c9fe8888f547bb750e5383b88e4d4021299004..ab8d7997a6a93a192f16316ff165968eedc2ce37 100644 (file)
--- a/ginac/matrix.h
+++ b/ginac/matrix.h
@@ -151,6 +151,7 @@ public:
        matrix solve(const matrix & vars, const matrix & rhs,
                     unsigned algo = solve_algo::automatic) const;
        unsigned rank() const;
+       bool is_zero_matrix() const;
 protected:
        ex determinant_minor() const;
        int gauss_elimination(const bool det = false);