use na::Real; use aliases::Qua; pub fn cross(q1: &Qua, q2: &Qua) -> Qua { unimplemented!() } pub fn dot(x: &Qua, y: &Qua) -> N { unimplemented!() } pub fn length(q: &Qua) -> N { unimplemented!() } pub fn normalize(q: &Qua) -> Qua { unimplemented!() }