Explain this while loop

Please explain the steps to how this code fragment works. I don't really understand count or index. Thanks.

What is count as a result of the given Matlab code fragment? Showing your work
may result in partial credit.

numbers = [2 4 3 -5 1 0];

count = 0;

index = 1;

while numbers(index) > 0

count = count + 1;

index = index +1;

end

count = 3

[Walter Roberson]

"count" and "index" are just variable names. You could have used XYZ and Chocolate_IceCream instead and MATLAB would not have cared.

Answer 1

[Azzi Abdelmalek]

numbers(1)=2
numbers(2)=4
numbers(3)=3
numbers(4)=-5  % before numbers becomes <0 the counter=3

Answer 2

[Youssef Khmou]

hi Dave :

Literally " Given a vector of length N, count the number of positive elements before the first negative one, as long as the numbers are positive count them but when a <0 number is met, stop the counting"