i

1

2

3

4

5

6

7

8

${\varphi }_i$

0.0000

0.1745

0.3491

0.5236

0.6981

0.8727

1.0472

1.2217

$G{Z}_i$

0.0000

0.3182

0.6834

0.8845

1.0000

0.8571

0.5135

0.0000