| 414 | |
| 415 | // Arc sine: asin(1.0) ≈ π/2. Input must be in [-1, 1]. |
| 416 | static FASTLED_FORCE_INLINE fixed_point asin(fixed_point x) FL_NOEXCEPT { |
| 417 | return from_raw(Base::asin(x).raw()); |
| 418 | } |
| 419 | |
| 420 | // Arc cosine: acos(0.0) ≈ π/2. Input must be in [-1, 1]. |
| 421 | static FASTLED_FORCE_INLINE fixed_point acos(fixed_point x) FL_NOEXCEPT { |