frexp()
Syntax:
#include <math.h> double frexp( double num, int *exp );
Description:
The function frexp() is used to decompose num into two parts: a mantissa between 0.5 and 1 (returned by the function) and an exponent returned as exp. Scientific notation works like this:
num = mantissa * (2 ^ exp)
Related Topics:
ldexp()
