log10(3)                   Library Functions Manual                   log10(3)

NAME
       log10, log10f, log10l -  base-10 logarithmic function

LIBRARY
       Math library (libm, -lm)

SYNOPSIS
       #include <math.h>

       double log10(double x);
       float log10f(float x);
       long double log10l(long double x);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       log10f(), log10l():
           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
               || /* Since glibc 2.19: */ _DEFAULT_SOURCE
               || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE

DESCRIPTION
       These functions return 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).

ATTRIBUTES
       For an explanation of the terms used in this section, see
       attributes(7).

       +--------------------------------------------+---------------+---------+
       |Interface                                   | Attribute     | Value   |
       +--------------------------------------------+---------------+---------+
       |log10 (), log10f (), log10l ()              | Thread safety | MT-Safe |
       +--------------------------------------------+---------------+---------+
STANDARDS
       C11, POSIX.1-2008.

HISTORY
       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)

Linux man-pages 6.7               2024-03-12                          log10(3)