pub fn vec< 4, bool, Q > equal(x: &Qua, y: &Qua) pub fn vec< 4, bool, Q > equal(x: &Qua, y: &Qua,epsilon: N) pub fn vec< 4, bool, Q > notEqual(x: &Qua, y: &Qua) pub fn vec< 4, bool, Q > notEqual(x: &Qua, y: &Qua,epsilon: N)