pub fn cos_sin(x: i32, y: i32, z: i32) -> (i32, i32)
Returns F*(x*cos(z*PI) - y*sin(z*PI)), F*(x*sin(z*PI) + y*cos(z*PI))
F*(x*cos(z*PI) - y*sin(z*PI)), F*(x*sin(z*PI) + y*cos(z*PI))