Re: functional programming excercise from Mastering Mathematica
- To: mathgroup at smc.vnet.net
- Subject: [mg55275] Re: functional programming excercise from Mastering Mathematica
- From: Jon Harrop <usenet at jdh30.plus.com>
- Date: Fri, 18 Mar 2005 05:33:51 -0500 (EST)
- References: <d1bflp$lja$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Torsten Coym wrote:
> Conversely, write your own
> function foldList that works just like the built-in operation with the
> same name, using ComposeList.
I get:
foldlist[f_, x_, l_List] :=
ComposeList[Function[{a}, Function[{x}, f[x, a]]] /@ l, x]
--
Dr Jon D Harrop, Flying Frog Consultancy
http://www.ffconsultancy.com