MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: computing cumulative sum for list


A={a1,a2,a3,a4,a5};

FoldList[Plus, First[A], Rest[A]]

{a1,a1+a2,a1+a2+a3,a1+a2+a3+a4,a1+a2+a3+a4+a5}


Bob Hanlon

> 
> From: Uwe Ziegenhagen <newsgroup at ziegenhagen.info>
To: mathgroup at smc.vnet.net
> Date: 2005/02/19 Sat AM 02:32:18 EST
> To: mathgroup at smc.vnet.net
> Subject: [mg54405] [mg54367] computing cumulative sum for list
> 
> Hello,
> 
> I would like to compute the cumulative sum for a list, but do not find 
> the command.
> 
> For
> 
> {1,2,3,4,5}
> 
> I would like to get
> 
> {1,3,4,10,15}
> 
> 
> Is there nothing builtin in Mathematica? I already looked in lists and 
> matrices and Google...
> 
> Uwe
> 
> -- 
> 
> mail to newsgroup at ziegenhagen.info is read only from time to time. If 
> you need an urgent answer, google for me.
> 
> 


  • Prev by Date: Re: How do I get a DSolve'd function
  • Next by Date: Re: Re: Why does Inverse[M] hesitate?
  • Previous by thread: RE: computing cumulative sum for list
  • Next by thread: Re: computing cumulative sum for list