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FREXP(3)                   Library Functions Manual                   FREXP(3)



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*2n
       indirectly through eptr.

       Ldexp returns the quantity value*2exp.

       Modf returns the positive fractional part of value and stores the inte-
       ger part indirectly through iptr.



                                19 January 1983                       FREXP(3)