ddex1histz = @(t) 2*ones(2,1);
ddex1dez = @(t,y,Z) [-1.5*y(1)^3+1/30*y(1)^3+1/20*y(2)^3-1/30*Z(1,1)^3+1/20*Z(2,1)^3;
-1*y(2)^3+1/20*y(1)^3+1/30*y(2)^3+1/20*Z(1,1)^3-1/30*Z(2,1)^3;];
ddex1histz = @(t_k) 2*ones(2,1);
ddex1dez = @(t_k,\Delta y) [ \Delta y(1)=-0.1*(y(1)+1);
\Delta y(2)=-0.3*(y(2)+1)];
sol = dde23(ddex1dez,[0.1],ddex1histz,[0, 10]);
figure;
% plot(sol.x,sol.y)
plot(sol.x,sol.y(1, )
hold on
plot(sol.x,sol.y(2, ,'-.' )
hold off
xlabel('time t');
ylabel('solution y');
legend('x1','x2');
??? ddex1dez = @(t_k,\Delta y) [ \Delta y(1)=-0.1*(y(1)+1);
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Error: Missing variable or function.
![Matlab 程序求助]()
1.png |