Re: NDSolve - how to bypass safety chceck?
- To: mathgroup at smc.vnet.net
- Subject: [mg111409] Re: NDSolve - how to bypass safety chceck?
- From: "slawek" <slawek at host.pl>
- Date: Sat, 31 Jul 2010 02:41:09 -0400 (EDT)
- References: <i2ub5q$jfj$1@smc.vnet.net>
U=BFytkownik "Daniel Lichtblau" <danl at wolfram.com> napisa=B3 w wiadomo=B6ci grup dyskusyjnych:i2ub5q$jfj$1 at smc.vnet.net... > (2) Jettison the DDE approach, and use recurrences to approximate the > behavior. This is a way of emulating a blind fixed step approach (that > is to say, there will be no error assessment, so the noise is allowed to > stay. Yes, yes, yes. Nevertheless, you can see, that there is no "an easy option" in NDSolve to switch off the "safety check", like: dirtysolution = NDSolve[..., BypassAllChecksAnGiveAnyAndPossibleWrongAnswer->True] or evenmorestupid = NDSolve[..., UseDumbFixedEulerMethod->True] Obviously, it would be funny to write an homemade DumbNDSolve[...] myself. The idea is to use Check[NDSolve[...], DumbNDSolve[...]]//Quiet instead of Check[NDSolve[...],"Unstable"]//Quiet slawek