Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2010

[Date Index] [Thread Index] [Author Index]

Search the Archive

Condensed syntax

  • To: mathgroup at smc.vnet.net
  • Subject: [mg113479] Condensed syntax
  • From: Themis Matsoukas <tmatsoukas at me.com>
  • Date: Sat, 30 Oct 2010 04:38:33 -0400 (EDT)

I have a list of {i,j} values,

ij = Tuples[config, 2]

{{1, 1}, {1, 2}, {1, 3}, {1, 4}, {2, 1}, {2, 2}, {2, 3}, {2, 4}, {3, 
  1}, {3, 2}, {3, 3}, {3, 4}, {4, 1}, {4, 2}, {4, 3}, {4, 4}}

and I want to create a list in which the {i,j} are passed as arguments to a function f[x,y], i.e., {f[1,1], f[1,2],..., f[4,4]}. I can do this using the two-step process:

g[X_List] := Apply[f, X]
Map[g, ij]

{f[1, 1], f[1, 2], f[1, 3], f[1, 4], f[2, 1], f[2, 2], f[2, 3], 
 f[2, 4], f[3, 1], f[3, 2], f[3, 3], f[3, 4], f[4, 1], f[4, 2], 
 f[4, 3], f[4, 4]}

Is there a way I can bypass the intermediate function g[x] and produce the final list in a single step?

Thanks

Themis


  • Prev by Date: Mac OS request
  • Next by Date: Re: How to isolate the constant in a two variable
  • Previous by thread: Mac OS request
  • Next by thread: Re: Condensed syntax