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Re: Building a list

  • To: mathgroup at
  • Subject: [mg47147] Re: Building a list
  • From: Bill Rowe <readnewsciv at>
  • Date: Sat, 27 Mar 2004 01:35:07 -0500 (EST)
  • Sender: owner-wri-mathgroup at

On 3/26/04 at 3:56 AM, mark at (Mark Coleman) wrote:

>I've got a relatively simple function f[a_,b_,c_,d_], where a and b
>are integers and c and d are lists (of reals), and f returns a

>I need to evaluate f on (potentially long) sets of lists and
>calculate a square "matrix" from the possible permutations of the
>elements in the lists. For instance



>I need to calculate

>],f[a ,b,x2,x3]},{f[a,b,x3,x1],f[a,b,x3,x2],f[a,b,x3,x3]}}

You can get what you want with Table e.g.

Table[f[a, b, xlist[[i]], xlist[[j]]],{i, Length@xlist}, {j, Length@xlist}]
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