Research Article
A Family of Trigonometrically Fitted Enright Second Derivative Methods for Stiff and Oscillatory Initial Value Problems
Table 4
Results with
, for Example
18.
| | ESDM | Nguyen et al. [16] |
| For we have | | EM1 | EM2 | EM3 | EM4 | Nguyen |
| | 6 | 6 | 6 | 6 | — | Err | 6.6 (−5) | 3.8 (−5) | 7.1 (−5) | 1.2 (−4) | — | | 10 | 10 | 10 | 10 | 10 | Err | 1.9 (−5) | 1.3 (−6) | 4.1 (−6) | 8.1 (−7) | 5.4 (−6) | | 27 | 27 | 27 | 27 | 19 | Err | 1.2 (−6) | 8.2 (−8) | 3.1 (−8) | 4.3 (−9) | 8.3 (−8) | | 32 | 32 | 32 | 32 | 23 | Err | 7.1 (−7) | 6.3 (−8) | 1.3 (−8) | 1.9 (−9) | 4.5 (−4) |
| For we have | | EM1 | EM2 | EM3 | EM4 | Nguyen |
| | 6 | 6 | 6 | 6 | 13 | Err | 6.6 (−5) | 3.8 (−5) | 7.1 (−5) | 1.3 (−5) | 1.0 (−6) | | 16 | 16 | 16 | 16 | 16 | Err | 5.3 (−6) | 6.2 (−7) | 1.8 (−7) | 2.5 (−8) | 1.6 (−7) | | 20 | 20 | 24 | 24 | 21 | Err | 2.8 (−6) | 3.2 (−7) | 5.3 (−8) | 6.5 (−9) | 7.0 (−8) |
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