4 We learned an algorithm for converting any DFA into a regular expression. This problem asks you a few questions about that algorithm. a) In the first phase of the algorithm, we must modify the automaton to make sure it satisfies some properties that are necessary for the algorithm to work correctly. What are those properties? b) Demonstrate how to do the first phase using the DFA below. start c) In the second phase, states are "ripped out" of a GNFA until only two states remain. Using that process, show what happens when state a is ripped out of the GNFA shown below. (You don't have to complete the process, just do this one step.) start +) (0U1) 01'0

4 We learned an algorithm for converting any DFA into a regular expression. This problem asks you a few questions about that algorithm. a) In the first phase of the algorithm, we must modify the automaton to make sure it satisfies some properties that are necessary for the algorithm to work correctly. What are those properties? b) Demonstrate how to do the first phase using the DFA below. start c) In the second phase, states are "ripped out" of a GNFA until only two states remain. Using that process, show what happens when state a is ripped out of the GNFA shown below. (You don't have to complete the process, just do this one step.) start +) (0U1) 01'0

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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Computational Systems

The computation systems can be defined as the systems that are capable of solving a problem that includes calculations either mathematical or logical, and are able to produce the result as an output. For example, a simple calculator that is given a set of numbers and operators as input and produces the result as an output can be defined as a computational system. The above example is a simple illustration only, the computational systems range from simple devices to complex devices such as the systems that control the SpaceX companies, Starlink satellites which are being quite recently seen in the skies at many places globally.

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