NAME

log10, log10f, log10l - base-10 logarithmic function

SYNOPSIS

#include <math.h>

double log10(double x);

float log10f(float x);

long double log10l(long double x);

Link with -lm.

DESCRIPTION

The log10() function returns the base 10 logarithm of x.

ERRORS

The log10() 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.

CONFORMING TO

SVr4, 4.3BSD, C89. The float and long double variants are C99 requirements.

SEE ALSO

cbrt(3), clog10(3), sqrt(3)

COLOPHON

This page is part of release 3.02 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.