MATLAB: Matlab vector plus it self

vector

Hello
Can someone help me, I need some help to this function: V=[e1,e2,e3,e4,e5….etc] e1 to etc are the values I will define for this function. As an example: V=[2,6,3,9,0,-10]
The function must return as: V=[e1,e1+e2,e1+e2+e3,e1+e2+e3+e4,e1+e2+e3+e4+e5….etc] As an example: V=[2,8,11,20,20,10]
I will appreciate any kinde of help

Best Answer

The cumsum function does exactly what you want:
V=[2,6,3,9,0,-10];
Vr = cumsum(V)
Vr =
       2     8    11    20    20    10
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