Cumulant vector

[Oscar Bayona Candel]

Hi all,
 
There is some function or easy way in Octave that permit you acumulate reference points?
 
I mena, for example,
 
a=[1 2 3 4 5] 
 
b=[1 3 6 10 15]
 
b sums the previous sum of the matrix.
 
so that b is the results of doing these kind of operations:
 
 
b[1,1)=a(1,1)
 
b(1.2)=b(1.1)+a(1.2)....b(1.5)=b(1.4)+b(1.5)
 
Thanks in advance.
 

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