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<TITLE>exp</TITLE>
<body bgcolor="#ffffcc">
<hr>
<pre>
<h3>EXP(3) Linux Programmer's Manual EXP(3)
</h3>
<h3>NAME
</h3> exp, log, log10, pow - exponential, logarithmic and power
functions
<h3>SYNOPSIS
</h3> #include <math.h>
double exp(double x);
double log(double x);
double log10(double x);
double pow(double x, double y);
<h3>DESCRIPTION
</h3> The exp() function returns the value of e (the base of
natural logarithms) raised to the power of x.
The log() function returns the natural logarithm of x.
The log10() function returns the base-10 logarithm of x.
The pow() function returns the value of x raised to the
power of y.
<h3>ERRORS
</h3> The log() and log10() functions can return the following
errors:
EDOM The argument x is negative.
ERANGE The argument x is zero. The log of zero is not
defined.
The pow() function can return the following error:
EDOM The argument x is negative and y is not an integral
value. This would result in a complex number.
<h3>CONFORMING TO
</h3> SVID 3, POSIX, BSD 4.3, ISO 9899
</pre>
<hr>
<h3>SEE ALSO
</h3><p>
<a href=sqrt.htm>sqrt</a>,
<a href=cbrt.htm>cbrt</a>,
<pre>
<h3>GNU June 16, 1993 1
</h3>
</pre>
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