LOG10(3) manual page
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log10, log10f, log10l - base-10 logarithmic
function
#include <math.h>
double log10(double x);
float log10f(float x);
long double log10l(long double x);
Link with -lm.
Feature Test Macro Requirements
for glibc (see feature_test_macros(7)
):
log10f(), log10l():
_BSD_SOURCE
|| _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
or cc -std=c99
The log10() function returns the base 10 logarithm
of x.
On success, these functions return the base 10 logarithm
of x.
For special cases, including where x is 0, 1, negative, infinity,
or NaN, see log(3)
.
See math_error(7)
for information on how to determine
whether an error has occurred when calling these functions.
For a discussion
of the errors that can occur for these functions, see log(3)
.
C99, POSIX.1-2001. The variant returning double also conforms to SVr4, 4.3BSD,
C89.
cbrt(3)
, clog10(3)
, exp10(3)
, log(3)
, log2(3)
, sqrt(3)
This
page is part of release 3.78 of the Linux man-pages project. A description
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of this page, can be found at http://www.kernel.org/doc/man-pages/.
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