How to get my script to work?

I want to make a script to follow an iterative procedure but every time I run my current script the following error message: ??? In an assignment A(I) = B, the number of elements in B and I must be the same.

A = [1 2;3 4]

%Investigate the iterative procedure v(n+1) = u/C

for n = 1:10

    v(1) = [1 0];
    u = A*transpose(v(n));
    C = norm(u);
    v(n+1) = u/C;
end

How do I fix this? Thank you for your help in advance.

[Jan]

When you post an error message in the forum, show the failing line also. Although we could guess it here, relying on out crystal balls is usually not efficient. ;-)

Answer 1

[Azzi Abdelmalek]

A = [1 2;3 4]
%Investigate the iterative procedure v(n+1) = u/C
for n = 1:10
  v(1,:) = [1 0];
  u = A*transpose(v(n,:));
  C = norm(u);
  v(n+1,:) = u/C;
end

[Arati]

Thank you, I can see where I was going wrong now.

[Jan]

I recommend to use a pre-allocation. This is fundamental for efficient programs.

Answer 2

[Jan]

A = [1 2;3 4]
v = zeros(11, 2);  % Pre-allocate  
v(1, :) = [1 0];   % Outside the loop
for n = 1:10
    u = A * transpose(v(n, :));
    C = norm(u);
    v(n+1, :) = u/C;
end