050 Matlab 연습문제 04

연습문제

hold off;

for x=-20:1:20
    for y=-20:1:20
        plot(x,y);
        hold on
        dt=0.01;
        for it=1:1:10;
            time=dt*it;
            dxdt=9*x+9*y;
            dydt=6*x+8*y;
            x=x+dxdt*dt;
            y=y+dydt*dt;
            plot(x,y);
            hold on;
        end
    end
end