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Declarative Concurrency (CTM 4)

Declarative Concurrency (CTM 4). Carlos Varela Rensselaer Polytechnic Institute Adapted with permission from: Seif Haridi KTH Peter Van Roy UCL October 28, 2016. Review of concurrent programming. There are four basic approaches: Sequential programming (no concurrency)

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739 views • 72 slides

Equivalence of CFGs and PDAs

Equivalence of CFGs and PDAs. Section 3.4 Mon, Oct 24, 2005. Every CFG is Equivalent to a PDA. Theorem: Let G = {V, , R , S } be a context-free grammar. There exists a PDA M such that L ( M ) = L ( G ). Proof: Let M = { K , Σ, Γ, Δ, s , F }, where K = { s , f }. Γ = V.

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694 views • 46 slides

NFA to DFA Conversion

NFA to DFA Conversion. Rabin and Scott (1959). Removing Nondeterminism. By simulating all moves of an NFA- λ in parallel using a DFA. λ -closure of a state is the set of states reachable using only the λ -transitions. . NFA- λ. p2. λ. p1. a. p3. q1. λ. λ. p5. λ. q2. a. p4.

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820 views • 14 slides

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