R help - Mar 2006 - Differential Equations

Dear R-community

My ODE problems looks as follows:
(1) dA/dt = u*A - v*B
(2) dB/dt = v*B - u*A

where u is a constant, and v=k*t (k=constant, t=time)

Does anybody knows a good function/procedure of solving? Should one 
involve the equation (3) dv/dt = k?
Thanks for your support.


-- 
Dominik Heinzmann
Master of Science in Mathematics, EPFL
Ph.D. student in Biostatistics
Institute of Mathematics
University of Zurich

Dominik Heinzmann <dominik.heinzmann at math.unizh.ch> writes:
> Dear R-community
> 
> My ODE problems looks as follows:
> (1) dA/dt = u*A - v*B
> (2) dB/dt = v*B - u*A
> 
> where u is a constant, and v=k*t (k=constant, t=time)
> 
> Does anybody knows a good function/procedure of solving? Should one 
> involve the equation (3) dv/dt = k?
> Thanks for your support.
You probably need to look into the odesolve package. The v*B terms
make it nonlinear, so I wouldn't expect an analytic solution.

-- 
   O__  ---- Peter Dalgaard             ?ster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
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