This paper introduces a new method of detecting and handling discontinuities in arbitrary functions which form part of an ordinary differential equation set. The method has been implemented in conjunction with the Gear [6] integration algorithm for stiff equation sets, published by Hindmarsh[9], but
Efficient automatic integration of ordinary differential equations with discontinuities
โ Scribed by D. Ellison
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 657 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0378-4754
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โฆ Synopsis
This paper describes a method of automatically detecting and accurately locating discontinuities which occur in many applications of ordinary differential equations. The integration formula is a Runge-Kutta so chosen that accurate values between integration points can be found by Hermite interpolation. The efficiency of the method arises from two sources: (i) the classification of discontinuities into two types, known as time and state events; and (ii) the location of state events using Hermite interpolation.
๐ SIMILAR VOLUMES
Abstrael--In this paper I describe some effective methods that can be applied to the study of the problem of existence of a polynomial or rational first integral of an arbitrary system of ordinary differential equations with polynomial right hand sides. I present an extension of the method of compat