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Runge Kutta -coupling problem

  1. Jun 10, 2011 #1

    I am trying to use the Runge-Kutta method for a problem that looks like this:

    dy/dt= f(u,v,r)
    where y= r*L

    I was wondering if dy/dt can be a function of more than 2 independent variables?

    Also do I need to do some kind of uncoupling of r and L? (I think L can be in a way expressed in terms of u and v but that would make things even more complicated I guess. )


  2. jcsd
  3. Jun 13, 2011 #2


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    Runge-Kutta works for only 1 independent variable, i.e t in this problem. Ultimately, u, v, r, L must all be expressed as functions of t for Runge-Kutta to work.
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