SDL_atanf - Man Page
Compute the arc tangent of x.
Synopsis
#include <SDL3/SDL_stdinc.h> float SDL_atanf(float x);
Description
The definition of y = atan(x) is x = tan(y).
Domain: -INF <= x <= INF
Range: -Pi/2 <= y <= Pi/2
This function operates on single-precision floating point values, use SDL_atan for dboule-precision floats.
To calculate the arc tangent of y / x, use SDL_atan2f.
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.
Function Parameters
- x
floating point value.
Return Value
Returns arc tangent of of x in radians, or 0 if x = 0.
Thread Safety
It is safe to call this function from any thread.
Availability
This function is available since SDL 3.2.0.
See Also
Referenced By
SDL 3.2.16 Simple Directmedia Layer SDL3 FUNCTIONS