(Gt(0.01)) ---> 0.99005

(Gt(.5)) ---> 0.606531

(Gt(.9)) ---> 0.40657

(Gt(-.1)) ---> -0.40657

(gt_with_full_tail(.5)) ---> ((0.5 * 
[[-0.44347,0]
 [0,-0.44347]]) + (0.5 * 
[[-0.443038,0]
 [0,-0.443038]]))

(gt_tail_with_one_term(.5)) ---> ((0.5 * 
[[-0.44347,0]
 [0,-0.44347]]) + (0.5 * 
[[-0.443038,0]
 [0,-0.443038]]))