protected:
ex eval_ncmul(const exvector & v) const;
bool match_same_type(const basic & other) const;
ex thiscontainer(const exvector & v) const;
ex thiscontainer(std::auto_ptr<exvector> vp) const;
unsigned return_type() const { return return_types::noncommutative; }
protected:
ex eval_ncmul(const exvector & v) const;
bool match_same_type(const basic & other) const;
ex thiscontainer(const exvector & v) const;
ex thiscontainer(std::auto_ptr<exvector> vp) const;
unsigned return_type() const { return return_types::noncommutative; }