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MathGroup Archive 2004

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Re: setting multiple boundary conditions in NDSolve

  • To: mathgroup at smc.vnet.net
  • Subject: [mg48505] Re: setting multiple boundary conditions in NDSolve
  • From: "Peter Pein" <petsie at arcor.de>
  • Date: Wed, 2 Jun 2004 04:22:26 -0400 (EDT)
  • References: <c9hakv$19o$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

""G.L.Narasimham"" <mathma18 at hotmail.com> schrieb im Newsbeitrag
news:c9hakv$19o$1 at smc.vnet.net...
> How to suply boundary conditions yi,ydi as list/threads, say for sine
> curve solutions in: deqn = 0 == y''[t] +  y[t] and get all plots in
> NDSolve[{deqn, y [0]== yi,y'[0]==ydi},y,{t,0,2 Pi}]?;
>

yv = y /. First /@
  ( NDSolve[{y''[t] + y[t] == 0, y[0] == #1, y'[0] == #2}, y, {t, 0, 2 Pi}]&
  @@@ {{0, 1}, {1/2, 1/2}, {1, -1/4}} );
Plot[Evaluate[#[t]& /@ yv], {t, 0, 2 Pi}];

-- 
Peter Pein, Berlin
to write to me, start the subject with [




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