// rational functions
virtual ex normal(exmap & repl, exmap & rev_lookup, int level = 0) const;
- virtual ex to_rational(lst &repl_lst) const;
- virtual ex to_polynomial(lst &repl_lst) const;
+ virtual ex to_rational(exmap & repl) const;
+ virtual ex to_polynomial(exmap & repl) const;
// polynomial algorithms
virtual numeric integer_content() const;