What happens in Example 9.10 if the string \( w \) contains any symbol other than 1? **Example 9.10**Design a Turing machine that copies strings of 1’s. More precisely, find a machine that performs the computation\[q_0w \vdash^* q_f ww,\]for any \( w \in \{1\}^+ \).To solve the problem, we implement the following intuitive process:1. Replace every 1 by an \( x \).2. Find the rightmost \( x \) and replace it with 1.3. Travel to the right end of the current nonblank region and create a 1 there.4. Repeat Steps 2 and 3 until there are no more \( x \)'s.The solution is shown in the transition graph in **Figure 9.7**. It may be a little hard to see at first that the solution is correct, so let us trace the program with the simple string 11. The computation performed in this case is

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Answered: Design a Turing machine that copies…

Design a Turing machine that copies strings of 1's. More precisely, find a machine that performs the computation gow Fafww, for any w e{1}*.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Use of XOR function

XOR function or exclusive OR function was introduced in Excel 2013. This function is available under excel logical functions. For the given statement, the XOR function will return true only when either of the statements is true. It returns false when both the statements are true or when both the statements are false.

Question

What happens in Example 9.10 if the string \( w \) contains any symbol other than 1?

**Example 9.10**

Design a Turing machine that copies strings of 1’s. More precisely, find a machine that performs the computation

\[
q_0w \vdash^* q_f ww,
\]

for any \( w \in \{1\}^+ \).

To solve the problem, we implement the following intuitive process:

1. Replace every 1 by an \( x \).

2. Find the rightmost \( x \) and replace it with 1.

3. Travel to the right end of the current nonblank region and create a 1 there.

4. Repeat Steps 2 and 3 until there are no more \( x \)'s.

The solution is shown in the transition graph in **Figure 9.7**. It may be a little hard to see at first that the solution is correct, so let us trace the program with the simple string 11. The computation performed in this case is

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