size_t nops() const;
ex op(size_t i) const;
ex map(map_function & f) const;
+ bool is_polynomial(const ex & var) const;
int degree(const ex & s) const;
int ldegree(const ex & s) const;
ex coeff(const ex & s, int n = 1) const;
ex evalm() const;
ex series(const relational & s, int order, unsigned options = 0) const;
ex subs(const exmap & m, unsigned options = 0) const;
+ bool has(const ex & other, unsigned options = 0) const;
ex normal(exmap & repl, exmap & rev_lookup, int level = 0) const;
ex to_rational(exmap & repl) const;
ex to_polynomial(exmap & repl) const;
ex conjugate() const;
+ ex real_part() const;
+ ex imag_part() const;
protected:
ex derivative(const symbol & s) const;
ex eval_ncmul(const exvector & v) const;
unsigned return_type() const;
- const basic* return_type_tinfo() const;
+ tinfo_t return_type_tinfo() const;
ex expand(unsigned options = 0) const;
// new virtual functions which can be overridden by derived classes