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February 28th, 2017, 01:51 PM   #1
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Differential equation of function composition of two variables.

Morning All.

I have a system I am completely stuck on.

Differential equation of function composition of two variables.

I need find a numerical solution of this system, like f(x(t),y(t)) = ...

Any Help

Regards
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 March 1st, 2017, 06:08 AM #2 Senior Member   Joined: Sep 2016 From: USA Posts: 443 Thanks: 254 Math Focus: Dynamical systems, analytic function theory, numerics Is this a stiff problem in the region of phase space you are interested in? If not, I would just use Runge-Kutta. If you aren't familiar with it there is a link below but in a nutshell, its a weighted average of particular Euler steps. https://en.wikipedia.org/wiki/Runge%...3Kutta_methods Hope this helps.
 March 1st, 2017, 06:08 AM #3 Senior Member   Joined: Sep 2016 From: USA Posts: 443 Thanks: 254 Math Focus: Dynamical systems, analytic function theory, numerics oh yeah and if the problem is stiff, Taylor expand.

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