Linux cli command log10
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NAME 🖥️ log10 🖥️
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)
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