Simple question loop for

Question

0 个投票

Hello,

It's a very basic question because I'm new in the world of Matlab.

I want to know what happend when there is a for loop like this :

for i = 1:n
    % Inside of the loop
end

but n = 0

Does it enter the loop or not at all ?

Thank you,

Laurie

0 个评论
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Answer 1

KSSV 2020-10-19

编辑：KSSV 2020-10-19

0 个投票

Lear debugging code. It will be help ful for you and easy.

If n = 0, it will not enter the loop.

n = 0 ;
for i = 1:n
    fprintf("%d\n",i)  % this will print index i to verify
end

Answer 2

Asad (Mehrzad) Khoddam 2020-10-19

0 个投票

You can simply add a disp command to see that nothing will be printed when n=0. It means that the statements inside the loop will not be executed.

n=0;
for i = 1:n
    % test
    disp(i);
    % Inside of the loop
end

Laurie 2020-10-19

Thank you very much for your reply !