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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: 4,495
Registered: 5/20/10
Re: Feedback in Turing Machines
Posted: May 27, 2013 1:37 AM
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On May 27, 2:32 pm, William Elliot <> wrote:
> On Sun, 26 May 2013, apoorv wrote:
> > On May 27, 8:13 am, William Elliot <> wrote:
> > > On Sat, 25 May 2013, apoorv wrote:
> > > > Is there some study on situation where the output from a TM at time T is
> > > > fed back so that the total input at time T+1 is some function of output
> > > > at time T and external input at time T+1.?

> > > So imput is on the right and out on the left and when done at time t, move
> > > the output to the right of the tape and start again.

> > > Time t+1 begins the new output from the old output. You get to wait until
> > > time t2 for the full second output.

> > The external input and the output have to be combined
> > So the second TM is necessary?

> Input 1 on the right side, gives output 1 on the left side.
> When done, imput 1 is erased and output 1 copied to the right side
> where it's now imput 2.  Imput 2 is used by the same machine
> to produce output 2 on the left side.

Starting left and finishing right is just a convention.

TMn - Start left, finish left, signal halt.

Seems there is never an output.


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