Re: Re: Applying a list of functions to a list of arguments

*To*: mathgroup at smc.vnet.net*Subject*: [mg57383] Re: [mg57325] Re: Applying a list of functions to a list of arguments*From*: "David Park" <djmp at earthlink.net>*Date*: Thu, 26 May 2005 04:31:26 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

Hi Jens, f = {f1, f2, f3}; a = {a1, a2, a3}; Apply @@@ Thread[{f, {#} & /@ a}] I guess that is supposed to be humorous, but I hope it is never the first example in a Functional Programming class! It depends a lot on bracket construction and even when I try to deconstruct it, it certainly doesn't appear as an obvious path to the solution. {#} & /@ a Thread[{f, %}] Apply @@@ % But, darn if it doesn't work! David Park djmp at earthlink.net http://home.earthlink.net/~djmp/ From: Jens-Peer Kuska [mailto:kuska at informatik.uni-leipzig.de] To: mathgroup at smc.vnet.net Hi, Apply @@@ Thread[{f, {#} & /@ a}] ?? Regards Jens "D M Yates" <yatesd at mac.com> schrieb im Newsbeitrag news:d6usl9$j41$1 at smc.vnet.net... >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 >