LLL family of ordinary differential equation solvers. [Description of GEAR and EPISODE codes and their variants]
Conference
·
OSTI ID:7183814
Two groups of programs were developed at LLL for the numerical solution of the initial value problem for systems of ordinary differential equations. The first includes the GEAR package. It is a general purpose, variable-order, automatic ODE solver, with eight different method options covering both stiff and nonstiff problem types. A number of variants of GEAR were also written in order to solve large stiff problems of various types. A newer and smaller group of programs is based on the EPISODE package, which resembles GEAR but is based on totally variable-step formulas. Most of the programs discussed are publicly available. 1 table.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 7183814
- Report Number(s):
- UCRL-78129
- Country of Publication:
- United States
- Language:
- English
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