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MathGroup Archive 2010

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grey levels in TuringMachine

  • To: mathgroup at smc.vnet.net
  • Subject: [mg112982] grey levels in TuringMachine
  • From: Andre Hautot <ahautot at ulg.ac.be>
  • Date: Sat, 9 Oct 2010 06:34:31 -0400 (EDT)

Hi,
here is Minsky UTM (7 states, 4 grey levels, 5 steps, input = {2,3} = 
{dark grey, black} cells : works fine

ArrayPlot[
 Last /@ TuringMachine[{\
5742835621286675109209976463064714465039262900613, 7,
    4}, {{1, 1}, {{2, 3}, 0}}, 5], Mesh -> True]


Now change the input into a single cell : 0, 1 and 3 work fine but 2 
starts with a black cell (should be dark grey)

ArrayPlot[
 Last /@ TuringMachine[{\
5742835621286675109209976463064714465039262900613, 7,
    4}, {{1, 1}, {{2}, 0}}, 5], Mesh -> True]

Any idea ?
Thanks in advance,
Andre



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