How to process the functionwhich determines the first symbol of words in the language L = {a,b}^* ?Code:`first : {a,b}^*`

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- Aug 24th 2010, 04:31 PMApprentice123Turing Machine
How to process the function

Code:`first : {a,b}^*`

- Aug 25th 2010, 03:29 AMemakarov
You could use an online Java Turing machine simulator, like this or this. The first one, unfortunately, does not show the current state during execution, so one has to keep track of it manually.

Speaking of Turing machines simulators, I am surprised I could not find a more professional-looking one... - Aug 25th 2010, 06:39 AMApprentice123
I would like to understand what I have to do to handle this function

It would be something like this:

q0 => (I,I,R) to q0

q0 => (P,P,L) to q1

q1 => (I,I,R) to q2

q2 => (P,P,L) to q1

q0 => (a,a,R) ???

q0 => (b,b,R) ???

I is symbol initial tape

P is symbol white