atan_unit()

static FASTLED_FORCE_INLINE s12x4 fl::s12x4::atan_unit ( s12x4 t )

inlinestaticprivate

Definition at line 391 of file s12x4.h.

                                                                     {
        constexpr s12x4 c0(0.9998779297f);
        constexpr s12x4 c1(-0.3269348145f);
        constexpr s12x4 c2(0.1594085693f);
        constexpr s12x4 c3(-0.0472106934f);
        s12x4 t2 = t * t;
        return t * (c0 + t2 * (c1 + t2 * (c2 + t2 * c3)));
    }

References s12x4(), FASTLED_FORCE_INLINE, FL_NOEXCEPT, and fl::t.

Referenced by atan(), and atan2().

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