Below is the code to rotate by 90 but how to rotate a matrix by 180 and 270 without using matlab fuctions

% Below is the code to rotate by 90 but how to rotate a matrix by 180 and 270

A=[1 2 3 4;5 6 7 8;10 11 12 13]

[nr,nc] = size(A);

At = zeros(nc,nr);

for i = 1:nr

for j = 1:nc

At(j,i) = A(i,j); end end

disp(At)

[Matt J]

No, the code you've posted will transpose A, not rotate it by 90 degrees. Compare

    >> At, rot90(A)

    At =

         1     5    10
         2     6    11
         3     7    12
         4     8    13

    ans =

         4     8    13
         3     7    12
         2     6    11
         1     5    10

Since the code you've posted is also code that I gave you in another thread as a homework hint, I will now close this thread.