Pushdown automata are a type of automaton that use a stack to recognize context-free languages. They are more powerful than finite-state machines but less powerful than Turing machines. Nested stack automata allow full access and can recognize a larger set of languages than pushdown automata.
Carnegie Mellon University
Spring 2015
A foundational course that introduces formal languages, automata, computability, and complexity theories, including finite automata, Turing machines, and P/NP classes.
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