A two-stack PDA is defined by a 9-tuple: M = (Q, Σ, Γ, Γ', δ, q0, z1, z2, F)Q − All the states the PDA can be in Σ − The input alphabet (symbols it can read) Γ − The alphabet for the first stack Γ' − The alphabet for the second stack δ − ...
In this chapter, we explained the concept of two-stack pushdown automata and Turing Machines. A two-stack PDA has more power because it can recognize all context-free languages, just like a regular PDA. In addition, a two-stack PDA can also recognize some context-sensitive languages, which ...
In this chapter, we explained the concept of two-stack pushdown automata and Turing Machines. A two-stack PDA has more power because it can recognize all context-free languages, just like a regular PDA. In addition, a two-stack PDA can also recognize some context-sensitive languages, which ...