MATLAB: How to keep track of iterate numbers in variable names

for looploop over variablesvariables names

How to create a unique variable for the outputs of a for loop?

So for example:

for k=1:4

 product=k*3

end

I want to be able to distinguish the iterates and have a result like:

 product1=3
 product2=6
 product3=9
 product4=12

This is just a simple example, I need it for a much larger problem.

One of ways

n=1;
k=[1 2 3 4;5 6 7 8];
out = zeros([size(k),3]);
while n<4
    k=k*n;
    out(:,:,n) = k;
    n=n+1;
end

Something like this might do it

k = 1;
while k <= 9
    x = k^2
    k = k+3;
end