LOG2
Section: Linux Programmer's Manual (3)
Updated: 2002-07-27
Index
Return to Main Contents
NAME
log2, log2f, log2l - base-2 logarithmic function
SYNOPSIS
#include <math.h>
double log2(double x);
float log2f(float x);
long double log2l(long double x);
Compile with -std=c99; link with -lm.
DESCRIPTION
The log2() function returns the base 2 logarithm of x.
ERRORS
The log2() function can return the following error:
- EDOM
-
The argument x is negative.
CONFORMING TO
SVID 3, POSIX, BSD 4.3, ISO 9899.
The float and the long double variants are C99 requirements.
SEE ALSO
cbrt(3),
clog2(3),
sqrt(3)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- ERRORS
-
- CONFORMING TO
-
- SEE ALSO
-
This document was created by
man2html,
using the manual pages.
Time: 00:12:38 GMT, May 13, 2005
www.fiveanddime.net