ex expand(unsigned options=0) const;
ex eval(int level=0) const;
ex evalf(int level=0) const;
+ ex evalm(void) const {return *this;}
ex subs(const lst & ls, const lst & lr, bool no_pattern = false) const;
ex eval_indexed(const basic & i) const;
ex add_indexed(const ex & self, const ex & other) const;
matrix sub(const matrix & other) const;
matrix mul(const matrix & other) const;
matrix mul(const numeric & other) const;
+ matrix mul_scalar(const ex & other) const;
+ matrix pow(const ex & expn) const;
const ex & operator() (unsigned ro, unsigned co) const;
matrix & set(unsigned ro, unsigned co, ex value);
matrix transpose(void) const;