-10   -2.15443
-9   -2.08008
-8   -2
-7   -1.91293
-6   -1.81712
-5   -1.70998
-4   -1.5874
-3   -1.44225
-2   -1.25992
-1   -1.00001
0   0
1   1.00001
2   1.25992
3   1.44225
4   1.58741
5   1.70998
6   1.81712
7   1.91293
8   2
9   2.08008
10   2.15443