MATLAB: How to update the title with variable string as time evolution

string-title. update-title

How to update the title with variable string as time evolution
figure(1)
hf=surf(x,y,E.^2)
ha=gca
title(['t=',num2str(0)])
xlabel('k_x')
ylabel('K_y')
zlabel('|E|^2')
dt=0.01;
k=1;
while 1
    *****
    k=k+1;
    t=k*dt;
    set(hf,'ZData',E.^2)
    set(ha,'Title',text(t))
end
The results appear such problems
Error using text
Invalid parameter/value pair arguments
Error in xxxx (line xx)
    set(ha,'Title',text(t))

Best Answer

title( ha, sprintf( 't=%f', t ) )
should work
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