From: steve nospam <>
Newsgroups: comp.soft-sys.matlab
Subject: Re: HOw to solve these type of equations
Date: Sat, 4 Aug 2012 05:24:15 -0700 (PDT)
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On Aug 4, 6:47am, "Dinesh " <> wrote:
> Hi
> I have a three deferential equations as
> y1' = .......
> y2'=.....
> 0=..... + X(t)    in the third equation i dont have y3' term and more over I have the extra term which varies with time . I know how to solve these if there is y3' and no X(t) by using ODE 23 , but how to do this ?
> Thank You

if no y3' then it not differential equation but algebra like in
school. just move the known to the left and unknown to the right to
solve and for the first 2 differentials use the matlab od54 functions
but need initial conditions