# Display Loop Values in a Matrix?

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Alex on 26 Apr 2012
I have a loop that is supposed to calculate a matrix. Which it does right, but it does not print how I want it too. I show my code and how it prints now.
for y=0:n-1;
Cm=A.^y;
C=Cm(n)*B;
disp(C)
end
2
2
2
6
6
6
18
18
18
I want the results to display like this
ans =
2 6 18
2 6 18
2 6 18
but no matter what I try I cannot get it to do so. Any help would be greatly appreciated. Thank you.

Wayne King on 26 Apr 2012
One way is to just collect the values into a matrix inside the loop and display outside
C = zeros(3,3);
for n = 1:9
C(n) = randi(5,1,1);
end
fprintf('%d\t %d\t %d\n',C);
% or disp(C)
You actually don't need to even set it up as a matrix first:
C = zeros(9,1);
for n = 1:9
C(n) = randi(5,1,1);
end
fprintf('%d\t %d\t %d\n',C);
If you want to print it out in the loop, you can do something like
C = zeros(9,1);
for n = 1:9
C(n) = randi(5,1,1);
if (mod(n,3)~=0)
fprintf('%d \t',C(n));
else
fprintf('%d\n',C(n));
end
end

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