halting
51NP-hard — For a gentler introduction, see P versus NP problem. Euler diagram for P, NP, NP complete, and NP hard set of problems NP hard (non deterministic polynomial time hard), in computational complexity theory, is a class of problems that are,… …
52Deadlock — This article is about the computer science concept. For other uses, see Deadlock (disambiguation). A deadlock is a situation where in two or more competing actions are each waiting for the other to finish, and thus neither ever does. It is often… …
53Charles Stross — at the Forbidden Planet bookstore, London, in 2009 Born 18 October 1964 (1964 10 18) (age 47) Leeds, England …
54Many-one reduction — In computability theory and computational complexity theory, a many one reduction is a reduction which converts instances of one decision problem into instances of a second decision problem. Reductions are thus used to measure the relative… …
55Machine that always halts — In computability theory, a machine that always halts also called a decider (Sipser, 1996) or a total Turing machine (Kozen, 1997) is a Turing machine that halts for every input. Because it always halts, the machine is able to decide whether a… …
56Algorithmically random sequence — Intuitively, an algorithmically random sequence (or random sequence) is an infinite sequence of binary digits that appears random to any algorithm. The definition applies equally well to sequences on any finite set of characters. Random sequences …
57Mobile Membranes — Membrane systems have been inspired from the structure and the functioning of the living cells. They were introduced and studied by Gh.Paun under the name of P systems [24]; some applications of the membrane systems are presented in [15].… …
58halt — {{11}}halt (adj.) lame, in O.E. lemphalt limping, from P.Gmc. *haltaz (Cf. O.S., O.Fris. halt, O.N. haltr, O.H.G. halz, Goth. halts lame ), from PIE *keld , from root *kel to strike, cut, with derivatives meaning something broken or cut off (Cf.… …
59Algorithm — Flow chart of an algorithm (Euclid s algorithm) for calculating the greatest common divisor (g.c.d.) of two numbers a and b in locations named A and B. The algorithm proceeds by successive subtractions in two loops: IF the test B ≤ A yields yes… …
60Computable number — In mathematics, particularly theoretical computer science and mathematical logic, the computable numbers, also known as the recursive numbers or the computable reals, are the real numbers that can be computed to within any desired precision by a… …
