for loop doesn't repeat the operation (Matlab)

Dear members

I have a program in which I don't have errors when running it, but it doesn't repeat the operation n=n+1 when the result of for loop is not 0.

I don't know where is the problem with for loop.

[Steven Lord]

Why did you edit away your code?

Answer 1

[Steven Lord]

Notice that the first n in the line "n = n+1;" is underlined? If you hover over that variable, you will see a Code Analyzer message that I believe will recommend not changing the value of the loop variable inside the loop. Any changes you make will persist only to the end of that iteration of the loop; when the next iteration starts the loop variable will take on the next value from the vector over which you're iterating.

for k = 1:5
fprintf("First, k is %d.\n", k)
k = k + 10;
fprintf("Next, k is %d.\n", k)
end

First, k is 1.

Next, k is 11.

First, k is 2.

Next, k is 12.

First, k is 3.

Next, k is 13.

First, k is 4.

Next, k is 14.

First, k is 5.

Next, k is 15.

If you just mean to skip to the next value of n (from 1:iteration) then just eliminate that line.

If you mean to skip (from 1 to 3 at the next iteration, not running the body of the loop for n = 2) then you're going to need to switch to a while loop.

If you want to stop the loop entirely when or if L becomes 0, use break.

[Afluo Raoual]

both if and n are underlined and I don't know how to solve this problem