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MathGroup Archive 2005

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Re: direct product of two sets

  • To: mathgroup at smc.vnet.net
  • Subject: [mg53267] Re: direct product of two sets
  • From: "timreh" <a.9021031 at nctu.edu.tw>
  • Date: Tue, 4 Jan 2005 03:12:28 -0500 (EST)
  • Organization: National Chiao Tung University
  • References: <crb4hv$an3$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,
  It seems can be done by using"Inner".
Inner[f,{a,b,c},{x,y,z}]={f[a,x],f[b,y],f[c,z]}


"Cong" <vo.chi.cong at is.titech.ac.jp> ¦b¶l¥ó news:crb4hv$an3$1 at smc.vnet.net
¤¤¼¶¼g...
> Hello!
>
> Give 2 finite sets A and B, how can I compute their direct product
> A x B := {(a,b) : a\in A, b\in B}
>
> Can someone help me?
>
> Best Regards,
>
> Cong
>



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