// other ctors
public:
- power(const ex & lh, const ex & rh);
- power(const ex & lh, const numeric & rh);
+ power(const ex & lh, const ex & rh) : inherited(TINFO_power), basis(lh), exponent(rh) {}
+ template<typename T> power(const ex & lh, const T & rh) : inherited(TINFO_power), basis(lh), exponent(rh) {}
- // functions overriding virtual functions from bases classes
+ // functions overriding virtual functions from base classes
public:
- void print(std::ostream & os, unsigned upper_precedence = 0) const;
- void printraw(std::ostream & os) const;
- void printtree(std::ostream & os, unsigned indent) const;
- void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence = 0) const;
+ void print(const print_context & c, unsigned level = 0) const;
+ unsigned precedence(void) const {return 60;}
bool info(unsigned inf) const;
unsigned nops() const;
ex & let_op(int i);
- int degree(const symbol & s) const;
- int ldegree(const symbol & s) const;
- ex coeff(const symbol & s, int n = 1) const;
+ ex map(map_function & f) const;
+ int degree(const ex & s) const;
+ int ldegree(const ex & s) const;
+ ex coeff(const ex & s, int n = 1) const;
ex eval(int level=0) const;
ex evalf(int level=0) const;
+ ex evalm(void) const;
ex series(const relational & s, int order, unsigned options = 0) const;
- ex subs(const lst & ls, const lst & lr) const;
+ ex subs(const lst & ls, const lst & lr, bool no_pattern = false) const;
ex normal(lst &sym_lst, lst &repl_lst, int level = 0) const;
ex to_rational(lst &repl_lst) const;
+ exvector get_free_indices(void) const;
ex simplify_ncmul(const exvector & v) const;
protected:
ex derivative(const symbol & s) const;
ex expand_add(const add & a, int n) const;
ex expand_add_2(const add & a) const;
ex expand_mul(const mul & m, const numeric & n) const;
- //ex expand_commutative_3(const ex & basis, const numeric & exponent,
- // unsigned options) const;
- //ex expand_noncommutative(const ex & basis, const numeric & exponent, unsigned options) const;
// member variables
protected:
ex basis;
ex exponent;
- static unsigned precedence;
};
// utility functions
-inline const power &ex_to_power(const ex &e)
+
+/** Efficient specialization of is_exactly_a<power>(obj) for power objects. */
+template<> inline bool is_exactly_a<power>(const basic & obj)
{
- return static_cast<const power &>(*e.bp);
+ return obj.tinfo()==TINFO_power;
}
// wrapper functions
{
return power(b, e);
}
+template<typename T1, typename T2>
+inline ex pow(const T1 & b, const T2 & e)
+{
+ return power(ex(b), ex(e));
+}
/** Square root expression. Returns a power-object with exponent 1/2. */
-ex sqrt(const ex & a);
+inline ex sqrt(const ex & a)
+{
+ extern const ex _ex1_2;
+ return power(a,_ex1_2);
+}
} // namespace GiNaC