Table 4.1. Example 1 results for the three partial derivatives of the solution at T = 3.
| Δ t | true ∂1q | est. ∂1q | Error | IIIab | IIb | Estimate | Error Estimate |
est. ∂1q+Est. true ∂1q |
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| 0.2 | 1.71E – 01 | 1.62E – 01 | 8.97E – 03 | 9.43E – 03 | −7.53E – 07 | 9.43E – 03 | 1.052 | 1.00 |
| 0.1 | 1.71E – 01 | 1.69E – 01 | 1.58E – 03 | 1.47E – 03 | −7.32E – 07 | 1.47E – 03 | 0.931 | 0.999 |
| 0.05 | 1.71E – 01 | 1.70E – 01 | 2.21E – 04 | 1.97E – 04 | 2.58E – 06 | 1.99E – 04 | 0.904 | 1.00 |
|
| ||||||||
| Δ t | true ∂2q | est. ∂2q | Error | IIIab | IIb | Estimate | Error Estimate |
est. ∂2q+Est. true ∂2q |
|
| ||||||||
| 0.2 | −3.17E + 00 | −2.95E + 00 | −2.27E – 01 | −1.76E – 01 | 1.07E – 06 | −1.76E – 01 | 0.776 | 0.984 |
| 0.1 | −3.17E + 00 | −3.14E + 00 | −2.91E – 02 | −2.29E – 02 | −7.29E – 07 | −2.29E – 02 | 0.788 | 0.998 |
| 0.05 | −3.17E + 00 | −3.17E + 00 | −3.54E – 03 | −2.81E – 03 | −9.58E – 06 | −2.82E – 03 | 0.796 | 1.00 |
|
| ||||||||
| Δ t | true ∂3q | est. ∂3q | Error | IIIab | IIb | Estimate | Error Estimate |
est. ∂3q+Est. true ∂3q |
|
| ||||||||
| 0.2 | 5.36E – 01 | 5.30E – 01 | 5.82E – 03 | 4.40E – 03 | −4.19E – 07 | 4.40E – 03 | 0.757 | 0.997 |
| 0.1 | 5.36E – 01 | 5.35E – 01 | 7.24E – 04 | 5.59E – 04 | −6.41E – 07 | 5.58E – 04 | 0.771 | 1.00 |
| 0.05 | 5.36E – 01 | 5.36E – 01 | 8.69E – 05 | 6.77E – 05 | 9.55E – 08 | 6.78E – 05 | 0.780 | 1.00 |
|
| ||||||||
| Δ t | true ∂4q | est. ∂4q | Error | IIIab | IIb | Estimate | Error Estimate |
est. ∂4q+Est. true ∂4q |
|
| ||||||||
| 0.2 | 2.78E – 01 | 2.45E – 01 | 3.27E – 02 | 3.53E – 02 | 7.92E – 07 | 3.53E – 02 | 1.08 | 1.01 |
| 0.1 | 2.78E – 01 | 2.72E – 01 | 5.92E – 03 | 5.58E – 03 | −1.09E – 06 | 5.57E – 03 | 0.941 | 0.999 |
| 0.05 | 2.78E – 01 | 2.77E – 01 | 8.36E – 04 | 7.50E – 04 | −8.04E – 06 | 7.41E – 04 | 0.887 | 1.00 |