Jin si jie x:
1.000000	1.000006	0.999805	1.002674	0.980302	1.086898	0.757043	1.441095	0.481531	1.380577	0.841451	1.028617	
Wu cha fan shu:  0.5184688315
Can cha fan shu:  0.00000000000000044409