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<TITLE>frexp</TITLE>
<body bgcolor="#ffffcc">
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<pre>
<h3>FREXP(3) Linux Programmer's Manual FREXP(3)
</h3>
<h3>NAME
</h3> frexp - convert floating-point number to fractional and
integral components
<h3>SYNOPSIS
</h3> #include <math.h>
double frexp(double x, int *exp);
<h3>DESCRIPTION
</h3> The frexp() function is used to split the number x into a
normalized fraction and an exponent which is stored in
exp.
<h3>RETURN VALUE
</h3> 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 nor-
malized fraction is zero and zero is stored in exp.
<h3>CONFORMING TO
</h3> SVID 3, POSIX, BSD 4.3, ISO 9899
</pre>
<hr>
<h3>SEE ALSO
</h3><p>
<a href=ldexp.htmldexp</a>,
<a href=modf.htm>modf</a>,
<pre>
<h3>GNU June 6, 1993 1
</h3>
</pre>
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