ATAN(3) | Library Functions Manual | ATAN(3) |
atan
, atanf
,
atanl
— arc tangent
functions of one variable
#include
<math.h>
double
atan
(double
x);
float
atanf
(float
x);
long double
atanl
(long
double x);
The
atan
()
function computes the principal value of the arc tangent of
x in the range [-pi/2, +pi/2]. The
atanf
()
function is a single precision version of atan
().
The
atanl
()
function is an extended precision version of
atan
().
acos(3), asin(3), atan2(3), cos(3), cosh(3), sin(3), sinh(3), tan(3), tanh(3)
April 26, 2016 | OpenBSD-current |