Hold on command for ode45 plot

Hi everybody! I am doing some exercises on solving systems of differential equations. I wanted to plot many solution curves on the same figure so I made a for loop:

for i=0:6
[t, x] = ode45(@exc_345, [-4 4], [-i i]);
hold on
plot(x(:,1),x(:,2));
hold off
end

It worked but now I saw that it is not "correct": the hold on and hold off commands would have to be out of the loop. Why does it work anyway? Thanks.

Answer 1

[Jan]

The hold off is overridden by the following hold on. So you can omit the hold off. The repeated call of hold on does not matter also, because the main action is that the 'NextPlot' property of the current plot is set to 'add'. Doing this repeatedly is not a problem.

[Lorenzo]

Thank you very much! I did not know much about the hold on/off properties.