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Topic: Feedback in Turing Machines
Replies: 17   Last Post: May 29, 2013 12:36 AM

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Graham Cooper

Posts: 4,269
Registered: 5/20/10
Re: Feedback in Turing Machines
Posted: May 26, 2013 6:31 PM
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On May 27, 4:56 am, apoorv <skj...@gmail.com> wrote:
> On May 26, 4:52 pm, Graham Cooper <grahamcoop...@gmail.com> wrote:> On May 26, 1:53 pm, apoorv <skj...@gmail.com> wrote:
>

> > > Just to clarify , the output is the tape to the left of the head and the external input is the tape to the right.
> > > -apoorv

>
> > its the same as 1 TM but if you're an idiot like Chaitan and have no
> > idea what you're doing you can prove some crazy shit

>
> > Herc
>
> Is there some literature on this?
> Basically to implement the feedback,
> We will need another machine that will
> Take the external input,the output at time T -1,
> And give the input at time T to the first
> Machine.
> -apoorv
>



Say the 1st TM doubles the number of consecutive 1's on the input
tape.

The 2nd TM adds one more 1.

f(g(i))

where g = 2*X
and f = X+1

Try nesting of functions.


Herc



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