Error estimators for stiff differential equations
Technical Report
·
OSTI ID:5538020
When solving ordinary differential equations numerically, the local error is estimated at each step. In the classical situation of small step sizes, it is clear what is required of the error estimators. Stiff problems are solved with large step sizes. The quality of error estimators is studied in this situation, and it is shown how to modify unsatisfactory estimators so as to improve them greatly. Several formulas from the literature are treated as examples.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5538020
- Report Number(s):
- SAND-83-2079; ON: DE84003331
- Country of Publication:
- United States
- Language:
- English
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