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Need explanation.

+4 votes
asked Oct 7 by JustAnAcc (790 points)
Hi! I'm an 11 year old programmer, who started in may. I code with python. I copyed a program, that tells you 3's multipliers (Sorry for my spelling). Can somebody tell me why is the "+1" at the for loops? Thanks.


2 Answers

0 votes
answered Oct 8 by YuLinLee (140 points)

range(start, stop, step)

startOptional. An integer number specifying at which position to start. Default is 0
stopRequired. An integer number specifying at which position to stop (not included).
stepOptional. An integer number specifying the incrementation. Default is 1
+1 vote
answered Oct 8 by Peter Minarik (63,140 points)

It's always a good idea to check out some documentation if you're unsure how a funciton or class works. For instance, check out the range().

You can see that range(start, stop, step) has 3 arguments: start, stop and step. The first element is start, but stop is never actually reached. Hence if you do want stop to be reached, you need to provide a new end, hence the writer of the code did stop + 1.

I hope this helped.

commented Oct 8 by JustAnAcc (790 points)
Thank you so much!
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