User login |
exp2 (3)
EXP2(3) Linux Programmer's Manual EXP2(3)
NAME
exp2, exp2f, exp2l - base-2 exponential function
SYNOPSIS
#include <math.h>
double exp2(double x);
float exp2f(float x);
long double exp2l(long double x);
Link with -lm.
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
exp2(), exp2f(), exp2l(): _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or
cc -std=c99
DESCRIPTION
The exp2() function returns the value of 2 raised to the power of x.
CONFORMING TO
SVr4, POSIX.1-2001, 4.3BSD, C89. The float and long double variants
are C99 requirements.
SEE ALSO
cbrt(3), cexp2(3), exp(3), exp10(3), sqrt(3)
2007-07-26 EXP2(3)
|