Sum and other algorithm functions

Namal via Digitalmars-d-learn digitalmars-d-learn at puremagic.com
Thu Sep 10 06:48:14 PDT 2015

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Hello,

how can I define the range for the sum function which I want to 
sum up? For instance how do I sum up the first 3 elements of an 
array

int[] a = [1,2,3,4,5,6,7,8,9];

or the last 3?

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