NAME
frexp, ldexp, modf - split into mantissa and exponent
SYNOPSIS
double frexp(value, eptr)
double value;
int *eptr;
double ldexp(value, exp)
double value;
double modf(value, iptr)
double value, *iptr;
DESCRIPTION
Frexp returns the mantissa of a double value as a double quantity, x, of magnitude less than 1 and stores an integer n such that value = x*2**n indirectly through eptr.
Ldexp returns the quantity value*2**exp.
Modf returns the positive fractional part of value and stores the integer part indirectly through iptr.