"while" loop nested within "for" loop

I'm terribly sorry if this seems like a very basic question (i'm just beginning to learn MATLAB). Anyways, can someone please show me a simple example of a while loop nested within a for loop? I understand the two loops separately but I can't figure out how to apply them together.

Answer 1

[the cyclist]

N = 5;
for ii = 1:3
    ii
    M = ii + 1;
    while M < N
         M = M + 1
    end
end

[Kevin Lai]

Thank you the cyclist for the answer!!! Much appreciated. If you don't mind, can you please explain to me the evaluation of M in the end (i.e. how it got M = 3, M = 4, M=5, M=4, M=5, and M=5)

Answer 2

[the cyclist]

You should probably read and understand the documentation of for and while.

Just follow the code step-by-step. I've commented each line to explain what it does:

N = 5; % Set N equal to 5
for ii = 1:3 % Execute the enclosed lines for ii=1, then ii=2 ,then ii=3.
    ii % Display the value of ii to the screen
    M = ii + 1; % Set the value of M to ii+1. Note that this is NOT displayed to the screen.
    while M < N % Execute the following line until M is less than N. (Remember that N=5.)
         M = M + 1 % Take the current value of M, increase it by 1, and display it to the screen.
    end % Go back to the start of the while loop, and check if it is still true
end % If we have not executed the last value of the for loop index, go back to the start of the for loop and execute for the new value.

Answer 3

[Manish Kumar]

n=10;
ans=0;
for i=1:n
    j=0;
    while j<i
        ans=i+j;
    end
end