Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Hello experts is it possible to work this out on a peice of paper and pen and uplaod the answers in form of picture please?
Hello experts is it possible to work this out on a peice of paper and pen and uplaod the answers in form of picture please?
It has been answered by an expert already but he has written some java code which is not intended for my question it is supposed to be worked out like Maths.
Many thanks.
Consider the Turing Machine depicted below. It uses the input alphabet {B,X} and the tape alphabet {B,X,}.A is the accepting state, initial state is 1 . Instead of having an explicit rejecting state, we use the convention that whenever a state encounters a tape character for which the state has no transition, the input is rejected. (This has been done for no other reason than to avoid clutter in the diagram.) Each of the following is worth 10% of the assessment: (a) For this TM, give complete computations for the words BXBB and BBXB, i.e. sequences of configurations ending in a final state configuration. In case of a rejection, assume a rejecting transition c/c/R to the (implicit) rejecting state R, where c is whatever character was unaccounted for. For example, state 3 has implicit transitions //R and X/X/R to state R. (b) The language recognized by this machine is context-free. Give a context-free grammar that describes the same language. Note: there is no general technique for doing this; but here is a hint: look at the big loop going from state 1 to state 1 ; this is like a recursive language description, but one loop iteration changes the tape content in a particular way. (c) Show that the language recognized by this TM is not regular. (d) In general, the halting problem for Turing Machines is undecidable. That does not mean it is always hard. Explain why this TM always halts for any input. (e) Modify the TM such that each accepted word is exactly the reverse order of an accepted word of the original machine. AStep by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started