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MathGroup Archive 2002

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Re: Thread? Through? Operate?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg32400] Re: [mg32388] Thread? Through? Operate?
  • From: BobHanlon at aol.com
  • Date: Sat, 19 Jan 2002 01:16:34 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

In a message dated 1/18/02 12:55:40 AM, 
johannes.ludsteck at wiwi.uni-regensburg.de writes:

>I have a list of n unnamed functions
>
>f = {expr1 &, expr2 &,... ,exprn &}
>(each function has exactly one arguement.
>and a list of n arguments.
>
>arg = {arg1, arg2,... ,argn}
>
>I simply want to apply each function expri &
>to the respective argument argi in order 
>to obtain the list of function values fi.
>Is there no more elegant way than the following one?
>
>Map[#[[1]][#[[2]]]&, Transpose[{f,arg}]
>

MapThread[#1[#2]&, {f, arg}]

or

Inner[#1[#2]&, f, arg, List]


Bob Hanlon
Chantilly, VA  USA


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