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log2l(3) -- Linux man page

 

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);
 

DESCRIPTION

The log2() function returns the natural 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

sqrt(3), cbrt(3)


 
LINUX MAN PAGES
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Man6 -- Games (Intro)
Man7 -- Miscellaneous (Intro)
Man8 -- Administration (Intro)
Mann -- TCL Functions (not available)


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