acos
From cppreference.com
| Defined in header <math.h>
|
||
| float acosf( float arg ); |
(since C99) | |
| double acos( double arg ); |
||
| long double acosl( long double arg ); |
(since C99) | |
Computes arc cosine of arg
[edit] Parameters
| arg | - | floating point value |
[edit] Return value
Arc cosine of arg in radians in the range of [0; π] radians.
Domain error occurs if arg is outside the range [-1.0; 1.0]. NAN is returned in that case.
[edit] See also
| computes arc sine (arcsin(x)) (function) | |
| computes arc tangent (arctan(x)) (function) | |
| arc tangent, using signs to determine quadrants (function) | |
| computes cosine (cos(x)) (function) | |
| C++ documentation for acos
| |
