SDL_acos - Man Page

Defined in SDL3/SDL_stdinc.h

#include "SDL3/SDL.h"

double SDL_acos(double x);

The definition of y=acos(x) is x=cos(y) .

Domain: -1<=x<=1 Range: 0<=y<=Pi This function operates on double-precision floating point values, use

SDL_acosf
for single-precision floats.

This function may use a different approximation across different versions, platforms and configurations. i.e, it can return a different value given the same input on different machines or operating systems, or if SDL is updated.

x

floating point value.

Returns arc cosine of x , in radians.

It is safe to call this function from any thread.

This function is available since SDL 3.2.0.

·(3), SDL_acosf(3), ·(3), SDL_asin(3), ·(3), SDL_cos(3)

SDL_acosf(3), SDL_asin(3), SDL_cos(3).