What does NC mean?

Definitions for NC

Here are all the possible meanings and translations of the word NC.

Princeton's WordNet

  1. North Carolina, Old North State, Tar Heel State, NC(noun)

    a state in southeastern United States; one of the original 13 colonies


  1. NC

    In complexity theory, the class NC is the set of decision problems decidable in polylogarithmic time on a parallel computer with a polynomial number of processors. In other words, a problem is in NC if there exist constants c and k such that it can be solved in time O using O parallel processors. Stephen Cook coined the name "Nick's class" after Nick Pippenger, who had done extensive research on circuits with polylogarithmic depth and polynomial size. Just as the class P can be thought of as the tractable problems, so NC can be thought of as the problems that can be efficiently solved on a parallel computer. NC is a subset of P because polylogarithmic parallel computations can be simulated by polynomial-time sequential ones. It is unknown whether NC = P, but most researchers suspect this to be false, meaning that there are probably some tractable problems that are "inherently sequential" and cannot significantly be sped up by using parallelism. Just as the class NP-Complete can be thought of as "probably intractable", so the class P-Complete, when using NC reductions, can be thought of as "probably not parallelizable" or "probably inherently sequential".

Anagrams for NC »

  1. C/N, CN, Cn, c'n


  1. Chaldean Numerology

    The numerical value of NC in Chaldean Numerology is: 8

  2. Pythagorean Numerology

    The numerical value of NC in Pythagorean Numerology is: 8

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