ex series(symbol const & s, ex const & point, int order) const;
ex normal(lst &sym_lst, lst &repl_lst, int level=0) const;
numeric integer_content(void) const;
ex series(symbol const & s, ex const & point, int order) const;
ex normal(lst &sym_lst, lst &repl_lst, int level=0) const;
numeric integer_content(void) const;