Construct Pushdown Automata for given languages
Prerequisite – Pushdown Automata, Pushdown Automata Acceptance by Final StateA push down automata is similar to deterministic…
Theory of Computation
Theory of Computation
Introduction of Pushdown Automata
We have already discussed finite automata. But finite automata can be used to accept only regular…
Theory of Computation
Ambiguity in Context-Free Grammars
If a context free grammar G has more than one derivation tree for some string w ∈ L(G), it is…
Theory of Computation
Context-Free Languages and Parse Trees
Example: CFG for {0 n1 n | n ≥ 1} CFG Formalism Productions Example: Formal…
Theory of Computation
Classification of Context Free Grammars
Context Free Grammars (CFG) can be classified on the basis of following two properties: 1) Based on…
Theory of Computation
Language Generated by a Grammar
The set of all strings that can be derived from a grammar is said to…
Theory of Computation
Introduction to Grammars
n the literary sense of the term, grammars denote syntactical rules for conversation in natural…
Theory of Computation
Closure properties of Regular languages
Closure properties on regular languages are defined as certain operations on regular language which are guaranteed to produce…
Theory of Computation
Designing Finite Automata from Regular Expression (Set 1)
In this article, we will see some popular regular expressions and how we can convert…