Add optional matrix::rank() algorighm selection.

[ginac.git] / ginac / matrix.h

diff --git a/ginac/matrix.h b/ginac/matrix.h
index cf7dd03954a2e73331d26a113499380584253769..44351d65885f6f11b755fa08b4476302c05fc087 100644 (file)
--- a/ginac/matrix.h
+++ b/ginac/matrix.h
@@ -153,9 +153,11 @@ public:
        matrix solve(const matrix & vars, const matrix & rhs,
                     unsigned algo = solve_algo::automatic) const;
        unsigned rank() const;
+       unsigned rank(unsigned solve_algo) const;
        bool is_zero_matrix() const;
 protected:
        ex determinant_minor() const;
+       std::vector<unsigned> echelon_form(unsigned algo, int n);
        int gauss_elimination(const bool det = false);
        int division_free_elimination(const bool det = false);
        int fraction_free_elimination(const bool det = false);
@@ -219,6 +221,8 @@ inline matrix inverse(const matrix & m, unsigned algo)
 
 inline unsigned rank(const matrix & m)
 { return m.rank(); }
+inline unsigned rank(const matrix & m, unsigned solve_algo)
+{ return m.rank(solve_algo); }
 
 // utility functions