module math fn C.cos(x f64) f64 fn C.cosf(x f32) f32 fn C.sin(x f64) f64 fn C.sinf(x f32) f32 // cos calculates cosine. [inline] pub fn cos(a f64) f64 { return C.cos(a) } // cosf calculates cosine. (float32) [inline] pub fn cosf(a f32) f32 { return C.cosf(a) } // sin calculates sine. [inline] pub fn sin(a f64) f64 { return C.sin(a) } // sinf calculates sine. (float32) [inline] pub fn sinf(a f32) f32 { return C.sinf(a) }