@(#)frexp.3 6.2 (Berkeley) 04/13/87

.AT 3 frexp, ldexp, modf - split into mantissa and exponent

 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 =
indirectly through 
 eptr. 

 Ldexp returns the quantity

 Modf returns the positive fractional part of
 value and stores the integer part indirectly
through 
 iptr.