ex evalf(int level=0) const;
ex series(const relational & r, int order, unsigned options = 0) const;
ex subs(const exmap & m, unsigned options = 0) const;
- ex normal(exmap & repl, int level = 0) const;
+ ex normal(exmap & repl, exmap & rev_lookup, int level = 0) const;
ex expand(unsigned options = 0) const;
protected:
ex derivative(const symbol & s) const;