log10

Sommaire

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)