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EXP(3) Linux Programmer's Manual EXP(3)
NAME
log, logf, logl - natural logarithmic function
SYNOPSIS
#include <math.h>
double log(double x);
float logf(float x);
long double logl(long double x);
Link with -lm.
DESCRIPTION
The log() function returns the natural logarithm of x.
ERRORS
The log() function can return the following errors:
EDOM The argument x is negative.
ERANGE The argument x is zero. The log of zero is not defined (minus
infinity).
CONFORMING TO
SVr4, 4.3BSD, C89. The float and long double variants are C99 require-
ments.
SEE ALSO
cbrt(3), clog(3), log1p(3), sqrt(3)
2002-07-27 EXP(3)
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Sat Sep 8 16:39:39 GMT 2007
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