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how to calculate a running total of a vector [message #3218]

Fri, 02 December 1994 09:51

VUKOVIC
Messages: 6
Registered: December 1994

Junior Member

Suppose I have a vector v.
I want to generate a vector vv whose i-th element is a sum of the first i
elements of v. How to do it fast -- without loops?

I thought of multiplying a matrix with 1's on and bellow its diagonal by v.
That would do it, but seems like a bit of overkill.

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		how to calculate a running total of a vector By: VUKOVIC on Fri, 02 December 1994 09:51
		Re: how to calculate a running total of a vector By: chase on Fri, 02 December 1994 13:34

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