SDL_acosf - Compute the arc cosine of x .

       This function is available since SDL 3.2.0.

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

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

       SDL_acos
        for double-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.

       Defined in SDL3/SDL_stdinc.h

       SDL_acosf - Compute the arc cosine of x .

       Returns arc cosine of x , in radians.

•(3), SDL_acos(3), •(3), SDL_asinf(3), •(3), SDL_cosf(3)

Simple Directmedia Layer                           SDL 3.2.10                                       SDL_acosf(3)

#include"SDL3/SDL.h"floatSDL_acosf(floatx);

       It is safe to call this function from any thread.