FREXP (3)
convert floating-point number to fractional and integral
components
SYNOPSIS
#include <math.h>
double frexp(double x , int * exp );
DESCRIPTION
The frexp() function is used to split the number x into a
normalized fraction and an exponent which is stored in exp.
RETURN VALUE
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
SVID 3, POSIX, BSD 4.3, ISO 9899
SEE ALSO
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