Concepts Of Programming Languages
Concepts Of Programming Languages
12th Edition
ISBN: 9780134997186
Author: Sebesta, Robert W.
Publisher: Pearson,
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Chapter 4, Problem 22RQ

Explanation of Solution

Mathematical machine on which both top-down and bottom up parsers:

  • PDA can be considered as a mathematical machine which scans the input symbols from left to right.
  • Since it uses a pushdown stack as the memory and hence the name.
  • PDA is used to recognize languages of a context free grammar. That is it can determine whether the input string is a sentence of the context free language...

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