Re: Hi, please help to resolve this time delay problem. thanks in
- To: mathgroup at smc.vnet.net
- Subject: [mg86191] Re: Hi, please help to resolve this time delay problem. thanks in
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Wed, 5 Mar 2008 03:40:50 -0500 (EST)
- References: <fqisu7$mbs$1@smc.vnet.net>
Hi, http://library.wolfram.com/infocenter/MathSource/725/ may help. Regards Jens foxvexon wrote: > Recently, I am trying to build up a model involving resolving some > time delay problem like the follow (for a simple example): > > NDSolve[{x[t] == t, y[t] == x[t + 2], x[0] == 0}, {x, y}, {t, 1, 2}] > > For this one, anybody can easily figure out the solution even at first > glance, but Mathematica replies me with > > NDSolve::ndinnt: "Initial condition Automatic[1.] is not a number or a > rectangular \ > array of numbers". > > Could anybody give me a help? > Merci beaucoup! >