[Newbie questions] function composition
- To: mathgroup at smc.vnet.net
- Subject: [mg38050] [Newbie questions] function composition
- From: Francois Bernard Lauze <francois at itu.dk>
- Date: Thu, 28 Nov 2002 14:07:43 -0500 (EST)
- Organization: The IT University Of Copenhagen
- Reply-to: francoisNO at SPAMit-c.dk
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
Hope I won't be too imprecise, I just started with mathematica
last Friday.
1)
I want to define a function, say f, with among others the following property
f[f[a,b,c],d,e] should be evaluated as f[f[a,b,1/2],b,1/2] in case
b = d and c = d = 1
2) from a list, say {a,b,c}, I would like to generate
{{b->0,c->0},{a->0,c->0},{a->0,b->0}
I guess I have understood the iterative way of doing that,
but what about a more functionqal form?
Thanks a lot,
Francois
--
Francois Lauze
The IT University of Copenhagen, Glentevej 67
2400 Kbh NV, Denmark
Tel (45) 38 16 89 29