public static float OutBack(float t, float s) => 1f - Easy.InBack(1f - t, s);
public static float InOutBack(float t, float s) => (double)t < 0.5 ? Easy.InBack(t * 2f, s) * 0.5f : (float)((double)Easy.OutBack((float)(((double)t - 0.5) * 2.0), s) * 0.5 + 0.5);
public static float OutBack(float t) => 1f - Easy.InBack(1f - t);