friend const numeric atanh(const numeric & x);
friend const numeric zeta(const numeric & x);
friend const numeric bernoulli(const numeric & n);
+ friend const numeric fibonacci(const numeric & n);
friend numeric abs(const numeric & x);
friend numeric mod(const numeric & a, const numeric & b);
friend numeric smod(const numeric & a, const numeric & b);
void printtree(ostream & os, unsigned indent) const;
void printcsrc(ostream & os, unsigned type, unsigned precedence=0) const;
bool info(unsigned inf) const;
+ bool has(const ex & other) const;
ex eval(int level=0) const;
ex evalf(int level=0) const;
ex normal(lst &sym_lst, lst &repl_lst, int level=0) const;
ex derivative(const symbol & s) const;
int compare_same_type(const basic & other) const;
bool is_equal_same_type(const basic & other) const;
- unsigned calchash(void) const {
- hashvalue=HASHVALUE_NUMERIC;
- return HASHVALUE_NUMERIC;
- }
+ unsigned calchash(void) const;
// new virtual functions which can be overridden by derived classes
// (none)
extern const type_info & typeid_numeric;
extern _numeric_digits Digits;
-#define is_a_numeric_hash(x) ((x)==HASHVALUE_NUMERIC)
+//#define is_a_numeric_hash(x) ((x)==HASHVALUE_NUMERIC)
// may have to be changed to ((x)>=0x80000000U)
+// has been changed
+//#define is_a_numeric_hash(x) ((x)&0x80000000U)
+
// global functions
const numeric exp(const numeric & x);