Re: Applying a list of functions to a list of arguments
- To: mathgroup at smc.vnet.net
- Subject: [mg57333] Re: Applying a list of functions to a list of arguments
- From: Torsten Coym <torsten.coym at eas.iis.fraunhofer.de>
- Date: Wed, 25 May 2005 06:02:37 -0400 (EDT)
- References: <d6usl9$j41$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
D M Yates wrote:
> I have a list of functions, and a list of arguments:
>
> For example,
> f = {f1, f2, f3}
> a = {a1,a2,a3}
>
> I would like to return
> {f1[a1],f2[a2],f3[a3]}
>
> I thought this should easy, but am stumped. Obviously the lists are of
> equal, but arbitrary length, and the arguments may or may not be atomic
> expressions. In my particular case, the arguments are likely to be
> combinations of Real, and List[Real,...], but I hope this is
> irrelevant.
>
> Any suggestions?
>
> Many thanks,
>
> Derek Yates
>
Derek,
MapThread is your friend here:
f = {f1, f2, f3}
a = {a1, a2, a3}
In[3]:=
MapThread[#1[#2] & , {f, a}]
Out[3]=
{f1[a1], f2[a2], f3[a3]}
Actually this is an example from MapThread[] help.
Torsten