log10(3)
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. Feature Test Macro Requirements for glibc (see feature_test_macros(7)): log10f(), log10l(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99
DESCRIPTION
The log10() function returns the base 10 logarithm of x.
RETURN VALUE
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).
ERRORS
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).
CONFORMING TO
C99, POSIX.1-2001. The variant returning double also conforms to SVr4,
4.3BSD, C89.
SEE ALSO
cbrt(3), clog10(3), exp10(3), log(3), log2(3), sqrt(3)
COLOPHON
- This page is part of release 3.25 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/.