for loop for matrix

hi everyone,

i need help for my code.

I have one for loop and A matrix, each loop i obtain new matrix, and for each matrix i want to plot the values,

A=10 X 10 continusely renewable matrix, and i want to plot each matrix in same figure,

Answer 1

[Walter Roberson]

A = randi([-9 9], 10, 10)

A = 10×10

-2 -3 1 4 -6 -6 7 -8 -5 -9 -2 4 3 -1 6 4 3 -6 1 5 2 -5 -4 3 -9 -5 9 7 -4 -6 4 9 7 -5 -4 -8 9 -7 7 -5 -7 4 -5 5 -5 -7 9 -4 -7 -3 -7 3 9 -2 2 -8 8 7 -7 -8 -4 -4 0 -5 -8 2 -2 -8 5 1 -1 3 -3 5 -9 -4 3 -4 -3 -7 -9 -2 6 9 8 -7 -4 -8 -8 -1 5 -8 -1 -1 -7 2 0 -8 -8 -4

A = {A};
for K = 1 : 3
   A{K+1} = A{K}*A{1};
   figure(); surf(A{K+1}); title("iteration " + K)
end

[mehmet salihi]

this is not working with me actualli, because i have two matrix that i need to plot.

U is 401x26 matrix

xx is 401x1 matrix

i am putting this condition to be solved. but does not looks like good. even i am obtaining three different graphes. not all three in same figure. could you help me with this. thanks

for cc=1:3
    if cc==1,
    figure(1); hold on; plot(xx,U(:,26)); title("iteration " + cc)

    elseif cc==2,
    figure(2); hold on; plot(xx,U(:,26)); title("iteration " + cc)    
    else
        figure(); hold on; plot(xx,U(:,26)); title("iteration " + cc)
    end
end

[Walter Roberson]

for cc = 1 : 3
   U(:,26) = U(:,26) + randn(size(U,1),1);  %or whatever change is appropriate
   plot(xx, U(:,26))
   title("iteration " + cc);
   hold on
end

[mehmet salihi]

that is awesome, thank you very much