Specifically here:
plot(x, u(:,n+1), 'DisplayName',sprintf('t = %2d',n))
and remove the legend call within the loop.
Then after the loop, the legend call is simply either:
legend
or:
legend('Location','best')
or something similar.
So the code would be something like this:
figure
hold on
for n = [1 50 23 9]
ii = 11 +1;
plot(x, u(:,n+1), 'DisplayName',sprintf('t = %2d',n))
xlabel('x(m)')
ylabel('t(s)')
title('Graph of U against x for specified time intervals')
grid on
end
hold off
legend('Location','best')
There are likely better ways to code the loop, however since this appears to be a section of larger code, I will leave it as is.
.
