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Thread Subject:
Runge-Kutta with fixed step size

Subject: Runge-Kutta with fixed step size

From: Kelly Kearney

Date: 6 Sep, 2007 15:09:49

Message: 1 of 3

Does Matlab provide any way of implementing a fourth-order
Runge-Kutta integration with a fixed step size?

I'm trying to diagnose some differences in the results of
two ecosystem models (the original, written in Visual .net,
and my rewrite in Matlab). The original was implemented
using a fixed step size, while I've been using the ode45
function, so I'd like to eliminate that difference for now
so I can search for other possible problems. I can write my
own algorithm easily, but I wanted to make sure I wasn't
overlooking some tip using the original Matlab ODE functions
first.

Thanks,
Kelly

Subject: Runge-Kutta with fixed step size

From: Alexander

Date: 12 Jul, 2013 16:39:42

Message: 2 of 3

Dear Kelly,

here you can find some information about that:
http://www.mathworks.de/support/solutions/en/data/1-1TJ3GZ/

Subject: Runge-Kutta with fixed step size

From: Kelly Kearney

Date: 12 Jul, 2013 17:32:07

Message: 3 of 3

"Alexander " <cardigan99@mail.ru> wrote in message <krpbgd$87r$1@newscl01ah.mathworks.com>...
> Dear Kelly,
>
> here you can find some information about that:
> http://www.mathworks.de/support/solutions/en/data/1-1TJ3GZ/


Hmm, maybe I should have replied to myself when I found those functions, 5 years ago. :-) But thanks!

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