Ed Pegg Jr
Registered: Oct 2003
Posts: 22 |
2D Turing Machines, 50th anniversary of Turing's death
At my latest Math Games column, you can see a discussion of recent findings in 2D and 3D Turing machines.
I wrote it to commemorate the 50th anniversary of Turing's death.
One item of note -- the best known 5-state, 2-color busy beaver has been unchallenged for 14 years. If any problem is within easy range of a computer attack these days, it's this one.
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