(0,0)(0,0)(0,0)
(1,1/2)(1,1 / 2)(1,1/2)
(−1/2,1)(-1 / 2,1)(−1/2,1)
(1/2,1/2)(1 / 2,1 / 2)(1/2,1/2)
(1/2,1/2)(1 / \sqrt{ } 2,1 / \sqrt{2})(1/2,1/2)