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MathGroup Archive 1999

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Help me understand this

  • To: mathgroup at smc.vnet.net
  • Subject: [mg15875] Help me understand this
  • From: phrje at csv.warwick.ac.uk
  • Date: Wed, 17 Feb 1999 23:33:31 -0500
  • Organization: Deja News - The Leader in Internet Discussion
  • Sender: owner-wri-mathgroup at wolfram.com

I'm not an expert in Mathematica and would appreciate comments on why init1
returns a list with all zeros replaced by -1, but init does not. Its probably
very simple but its confused me.

Don

init[n_Integer]:=Module[
                    {s=Table[Random[Integer],{n n}]},
                    s/.{0->-1};
                    Partition[s,n]
                    ]

init1[n_Integer]:=Module[
                    {s=Table[Random[Integer],{n n}]},
                    s/.{0->-1}
                    ]


--

Prof. Don McKenzie Paul               tel.  (1203) 523603
Department of Physics                 fax.  (1203) 692016
University of Warwick                 email  phrje at csv.warwick.ac.uk
COVENTRY CV4 7AL
UK



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