what is happening here?

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Salman Yahya
Salman Yahya 2019-10-22
回答： Image Analyst 2019-10-22
for j = 1:6 - 1
if sign(i(j,1)) * sign(i(j+1,1)) == -1
m = m + 1;
end
end
in this code what does "1:6-1" means?

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采纳的回答

Star Strider
Star Strider 2019-10-22
‘in this code what does "1:6-1" means?’
It is a kludgy way of writing:
1:5
as running it will demonstrate:
q = 1:6-1
produces:
q =
1 2 3 4 5

更多回答（1 个）

Image Analyst
Image Analyst 2019-10-22
Try it in the command window:
>> 1:6-1
ans =
1 2 3 4 5
First it does (6-1) to create a scalar 5, then it goes from 1 to (6-1) or 1 to 5 to give [1,2,3,4,5].

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