MATLAB: How to draw the graph of three species ratio-dependent predator prey model

image analysis

f1=x1.*(a1-b1.*x1)-e1.*x1.*x2-b22.*(1-m).*x1.*y./(y+a0.*(1-m).*x1); f2=x2.*(a2-b2.*x2)-e2.*x1.*x2-c2.*x2.*y./(m1.*y+a33.*x2); f3=y.*(-d+a11.*c2.*x2./(m1.*y+a33.*x2)+a22.*b22.*(1-m).*x1./(y+a0.*(1-m).*x1));

Best Answer

More precise equations after non-dimensionlisation are dX1dT= (X1.*(1-m1.*X1)-A1.*X1.*X2-C1.*X1.*Y./(Y+X1)); dX2dT=(K.*X2.*(1-A2.*X2)-B.*X1.*X2-C2.*X2.*Y./(Y+X2)); dYdT=(-D.*Y+B1.*X2.*Y./(Y+X2)+B2.*X2.*Y./(Y+X1));
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