Explain this while loop

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Dave Smith
Dave Smith 2013-2-26
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
  1 个评论
Walter Roberson
Walter Roberson 2013-2-26
"count" and "index" are just variable names. You could have used XYZ and Chocolate_IceCream instead and MATLAB would not have cared.

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2013-2-26
编辑：Azzi Abdelmalek 2013-2-26
numbers(1)=2
numbers(2)=4
numbers(3)=3
numbers(4)=-5 % before numbers becomes <0 the counter=3

更多回答（1 个）

Youssef Khmou
Youssef Khmou 2013-2-26
编辑：Youssef Khmou 2013-2-26
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"

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