Getting sum of Elements of a Vector

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Ghulam
Ghulam 2017-3-29
回答： KSSV 2017-3-29
Hi, I am writing a code in which i have to take the sum of a defined range of elements of a Vector. For e.g From (1,3) to (1,5). Means the sum of the value at Column 3,4 and 5. I have used the command sum in the following way but its giving ambiguous answers. sum(A(1,3):A(1,5)) Can anyone please guide me how to perform this task? Also inform me what mistake I am doing so I may correct my understanding. Thanks a lot.

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KSSV
KSSV 2017-3-29
sum(A(1,3:5))

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