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Mads Ravn

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18 years, 315 days
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Questions about dsolve(...,numeric), ode...

Mads Ravn 16 Maple
ode dsolve
November 28 2006
4 1
Hello all, I'm looking into visualizing/solving the Lotka-Volterra equations in Maple 10. In doing so I've run into a few problems: 1) When executing the following commands > odeqs:= {diff(N(t),t) = a*N(t) - b*N(t)*P(t), diff(P(t),t)=c*N(t)*P(t) - d*P(t)}: > # Growth rate of prey > a:= 3; > # Predatation rate > b:= 2; > # Growth of predators as a consequence of predation > c:= 1; > # Mortality rate of predators > d:= 1/2; > # Initial Conditions > initConds:=[N(0)=(5/3),P(0)=(10/9)]]; > > # Display number of prey as a function of time > DEplot(odeqs, [N(t),P(t)], t=0..100, N=0..7, P=0..7, initConds,
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