NAME    [Toc]    [Back]

       frexp - convert floating-point number to fractional and integral components

SYNOPSIS    [Toc]    [Back]

       #include <math.h>

       double frexp(double x, int *exp);

DESCRIPTION    [Toc]    [Back]

       The frexp() function is used to split the number x  into  a  normalized
       fraction and an exponent which is stored in exp.

RETURN VALUE    [Toc]    [Back]

       The  frexp() function returns the normalized fraction.  If the argument
       x is not zero, the normalized fraction is x times a power of  two,  and
       is always in the range 1/2 (inclusive) to 1 (exclusive).  If x is zero,
       then the normalized fraction is zero and zero is stored in exp.

CONFORMING TO    [Toc]    [Back]

       SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO    [Toc]    [Back]

       ldexp(3), modf(3)



GNU				  1993-06-06			      FREXP(3)