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