How do I get the for loop to run correctly?

A = [1, 2, 3;4,5,6];
result = zeros(size(A));
for k = [1:2]
    result = strcat(num2str(A(k,1)),num2str(A(k,2)),num2str(A(k,3)));
    k = k+1;
end

The aim of the above code is to combine three single digits to one 3-digit number. The result I expect is [123;456] but instead I am getting only [456]. Also when i check the value of k after running it, it says k =2. Please what is wrong with my code?

Answer 1

[Andrei Bobrov]

out = A*10.^(size(A,2)-1:-1:0)'; % in your case

other [EDIT]

n = floor(log10(A(:,2:end)))+1;
n = [n, zeros(size(A,1),1)];
out = sum(A.*10.^cumsum(n,2,'r'),2);

 % using

>> A =[ 60   110    49
        17     9    91];
>> n = floor(log10(A(:,2:end)))+1;
n = [n, zeros(size(A,1),1)];
out = sum(A.*10.^cumsum(n,2,'r'),2)
out =
     6011049
       17991
>>

or

out = mat2cell(sprintf('%d',A'),1,sum(floor(log10(A))+1,2)')';

[N/A]

Thank you. This worked for me.

Answer 2

[Walter Roberson]

    result = strcat(num2str(A(k,1)),num2str(A(k,2)),num2str(A(k,3)));

is writing over all of the variable result in the loop. You want to instead write to one row of it, result(k,:) = ...

[N/A]

Thank you