sdlAtanf function stdinc

double sdlAtanf(
  1. double x
)

Compute the arc tangent of x.

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.

\param x floating point value. \returns arc tangent of of x in radians, or 0 if x = 0.

\threadsafety It is safe to call this function from any thread.

\since This function is available since SDL 3.2.0.

\sa SDL_atan \sa SDL_atan2f \sa SDL_tanf

extern SDL_DECLSPEC float SDLCALL SDL_atanf(float x)

Implementation

double sdlAtanf(double x) {
  final sdlAtanfLookupFunction = _libSdl
      .lookupFunction<Float Function(Float x), double Function(double x)>(
        'SDL_atanf',
      );
  return sdlAtanfLookupFunction(x);
}