Unusually function for NDSolve.
- To: mathgroup at smc.vnet.net
- Subject: [mg107704] Unusually function for NDSolve.
- From: Shawn Garbett <shawn.garbett at gmail.com>
- Date: Wed, 24 Feb 2010 06:18:08 -0500 (EST)
I read an earlier thread titled 'How can I "perturbate" a NDSolve expresion?'. It came close to what I need to do. I didn't understand the nature of 'a' in NDSolve. Are there any references for this. I have a function that is part of the equations to solve, but when one variable crosses a threshold from below I need the current value of another variable to be cut in half. So I really have two problems, one how do I monitor a variable that NDSolve is working on for crossing a threshold from below? and secondly, how do I modify a variable in NDSolve without throwing error flags on accuracy checks? It's sort of a triggered perturbation.