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How to recursively add odd index elements in a vector

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Noah Swiston
Noah Swiston 2015-4-28
回答： Star Strider 2015-4-28
I have an assignment to write a recursive function to add the odd elements within a vector. For example i have a vector
v = 2 4 7 8 10 34 1
I would like to add 2 + 7 + 10 + 1 = 20 using a recursive method. Any help is greatly appreciated!

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Star Strider
Star Strider 2015-4-28
You have been asked to add the elements with odd indices. This is different (and easier) than odd elements.
Since this is a homework assignment, I will refer you to the documentation for the colon operator. (No worries — it has absolutely nothing to do the the gastrointestinal tract!)

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