Re: Beginners Question - Series list problem

• To: mathgroup at smc.vnet.net
• Subject: [mg35676] Re: [mg35636] Beginners Question - Series list problem
• From: "Julio Vera" <jvera at adinet.com.uy>
• Date: Thu, 25 Jul 2002 04:46:15 -0400 (EDT)
• References: <200207240605.CAA28634@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```Barry,

I think you are looking for the command NestList.

A function ff is defined, for example

ff[a_]:=2a

The first element is defined

In[] fir=1
Out[] 1

Then ff is applied a number of times to the first and following elements

In[] lst=NestList[ff,fir,10]
Out[] {1,2,4,8,16,32,64,128,256,512,1024}

Julio
----- Original Message -----
From: "Baz" <bazcor at tiscali.co.uk>
To: mathgroup at smc.vnet.net
Subject: [mg35676] [mg35636] Beginners Question - Series list problem

> I am trying to generate a list of numbers where the number being
> calculated is dependant on the previous list member.
>
> What I (think I) need is a function, like
> SeriesTable[expr,{InitialValue,imax}] where IntitialValue will be the
> first value in the list and expr will be evaluated on this value to
> form the second value and so on Imax times.
>
>
> My attempts to write such a function have failed miserably. Please
> help ... Barry
>

```

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