Cumulatively sum numbers in an array between two indices

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TOK 2021-3-31

评论： TOK 2021-3-31

采纳的回答： DGM

Hi,

Lets say I have an array with 10 positions as in the picture, for example.

I want to add all the numbers between Index 4 and index 8, and get my answer of 150

What would be the best way of going about this?

Thanks

DGM 2021-3-31

Something like this:

x=5:5:50
sum(x(4:8))

TOK 2021-3-31

Perfect, thank you very much. I knew it was something quite simple but I just couldn't find or work it out!

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