z, f(z), g(z), h(z)
1, 0.01, -96,  -1
2, 0.04, -84,  1
3, 0.09, -72,  -1
4, 0.16, -60,  1
5, 0.25, -48,  -1
6, 0.36, -36,  1
7, 0.49, -24,  -1
8, 0.64, -12,  1
9, 0.81,  0,  -1
10, 1.00, 12,  1
11, 1.21, 24, -1
12, 1.44, 36,  1
13, 1.69, 48, -1
14, 1.96, 60,  1
15, 2.25, 72, -1
16, 2.56, 60,  1
17, 2.89, 48, -1
18, 3.24, 36,  1
19, 3.61, 24, -1
20, 4.00, 12,  1
21, 4.41, 0,  -1
22, 4.84, -12, 1
23, 5.29, -24, -1
24, 5.76, -36,  1
25, 6.25, -48, -1
26, 6.76, -60,  1
27, 7.29, -72, -1
28, 7.84, -84,  1
29, 8.41, -96, -1
30, 9.00, -108, 1
