| Pré. | Proc. |
frexp
Extract exponent.SYNOPSIS:
double frexp(x, expnt);
double x;
int expnt;
y = frexp(x, &expnt);
DESCRIPTION:
frexp() extracts the exponent from x. It returns an integer power of two to expnt and the significand between 0.5 and 1 to y. Thus x = y * 2**expn.