Starting an ODE solver. [Selection of initial step size]
A scheme is developed for the automatic selection of the initial step size for an ODE solver. Additional devices are developed to increase the reliability and efficiency of the selection for stiff problems. The question of starting the integration with zero initial values when a pure relative error control is desired is answered for some kinds of codes. Some numerical results are given to illustrate the devices and support some of the conclusions.
- Research Organization:
- Sandia Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- EY-76-C-04-0789
- OSTI ID:
- 5294527
- Report Number(s):
- SAND-77-1023
- Country of Publication:
- United States
- Language:
- English
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