# How to store the results from an iteration process?

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Andes on 31 Jan 2017
Commented: Andes on 1 Feb 2017
Hello,
I need to store the results from a iteration similar to this: clear all A = (1:10)'; for i = 1:2 for x=[5 11] B = A * x; end C(:,i) = B; end but here only the last result is stored. I need this: C =[A*5,A*11] but with an iteration process similar to the above code. Any suggestions... Thank you very much in advance!

Niels on 31 Jan 2017
maybe this does what you want
clc
clear all
A = (1:10)';
x=[5 11];
C=zeros(length(A),length(x));
for i = 1:2
C(:,i) = A * x(i);
end
if it does, you forgot to index x, you had 1 loop to much. for any i x would be 5 and 11.
and you forgot to preallocate C
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Andes on 1 Feb 2017
Thank you very much, this is what i needed

### More Answers (1)

Roger Stafford on 31 Jan 2017
You have one too many for-loops
clear all
A = (1:10)';
x = [5,11];
for i = 1:2
C(:,i) = A * x(i);
end
##### 1 CommentShowHide None
Andes on 31 Jan 2017
Great, Thanks a lot!