// functions overriding virtual functions from bases classes
public:
void print(const print_context & c, unsigned level = 0) const;
// functions overriding virtual functions from bases classes
public:
void print(const print_context & c, unsigned level = 0) const;
bool info(unsigned inf) const;
int degree(const ex & s) const;
int ldegree(const ex & s) const;
ex expand(unsigned options=0) const;
ex coeff(const ex & s, int n=1) const;
ex eval(int level=0) const;
bool info(unsigned inf) const;
int degree(const ex & s) const;
int ldegree(const ex & s) const;
ex expand(unsigned options=0) const;
ex coeff(const ex & s, int n=1) const;
ex eval(int level=0) const;
exvector get_free_indices(void) const;
ex thisexprseq(const exvector & v) const;
ex thisexprseq(exvector * vp) const;
exvector get_free_indices(void) const;
ex thisexprseq(const exvector & v) const;
ex thisexprseq(exvector * vp) const;