ex expand(unsigned options=0) const;
ex coeff(const symbol & s, int n=1) const;
ex eval(int level=0) const;
- ex diff(const symbol & s) const;
ex subs(const lst & ls, const lst & lr) const;
exvector get_indices(void) const;
ex thisexprseq(const exvector & v) const;
ex thisexprseq(exvector * vp) const;
protected:
+ ex derivative(const symbol & s) const;
int compare_same_type(const basic & other) const;
unsigned return_type(void) const;
unsigned return_type_tinfo(void) const;