| Nodes | MAE(1) | |
| Example 1 | Example 2 | |
| Chebyshev 1st | 4.0434×10−05 | 9.8962×10−05 |
| Chebyshev 2nd | 2.0384×10−05 | 1.6515×10−09 |
| Legendre | 2.6579×10−05 | 6.0033×10−09 |
| Jacobi | 1.6742×10−05 | 7.1661×10−10 |