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Lotka-Volterra equations

Input: (comments follow the % symbol)

%Lotka-Volterra equations;
b=0.5;                        % parameters
r=0.05;
k=0.049;
m=0.005;

P1'=P1*(-r+k*H1);     % model
H1'=H1*(-k*P1+b);
P1=5;                           % initial condiditons
H1=5;

Screen shot of ModSim setup to solve the model given above:

ModSim output  in its Graphics window (predator and prey abundances shown):

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This file was last modified on 8 Nov. 1999.

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