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sieve method

См. также в других словарях:

  • Sieve method — Sieve method, or the method of sieves, can mean: in combinatorics, the set of methods dealt with in sieve theory or more specifically, the Inclusion exclusion principle in statistics, and particularly econometrics, the use of sieve estimators in… …   Wikipedia

  • Sieve of Eratosthenes — Sieve of Eratosthenes: algorithm steps for primes below 121 (including optimization of starting from prime s square). In mathematics, the sieve of Eratosthenes (Greek: κόσκινον Ἐρατοσθένους), one of a number of prime number sieves, is a simple,… …   Wikipedia

  • sieve of Er|a|tos|the|nes — «EHR uh TOS thuh NEEZ», a method for finding prime numbers by writing down a series of whole numbers, beginning with 2, then crossing out all the second numbers except 2, all the third except 3, and so on until all but the prime numbers remain.… …   Useful english dictionary

  • Sieve analysis — A sieve analysis is a practice or procedure used to assess the particle size distribution of a granular material. The size distribution is often of critical importance to the way the material performs in use. A sieve analysis can be performed on… …   Wikipedia

  • sieve and shears —    A well known form of *divination, akin to the *Bible and key method, normally used to name a thief or find something which has been lost. Descriptions vary little, and the following is from Aubrey (1686: 25):    The Sheers are stuck in a Sieve …   A Dictionary of English folklore

  • Sieve estimator — In statistics, sieve estimators are a class of nonparametric estimator which use progressively more complex models to estimate an unknown high dimensional function as more data becomes available, with the aim of asymptotically reducing error… …   Wikipedia

  • sieve of eratosthenes — ˌerəˈtästhəˌnēz Usage: usually capitalized E Etymology: after Eratosthenes fl 3d century B.C. Greek astronomer and geographer : a device for finding prime numbers consisting of the writing down of the odd numbers from 3 up in succession and of… …   Useful english dictionary

  • sieve of Eratosthenes — Math. a method of obtaining prime numbers by sifting out the composite numbers from the set of natural numbers so that only prime numbers remain. [1795 1805] * * * …   Universalium

  • Quadratic sieve — The quadratic sieve algorithm (QS) is a modern integer factorization algorithm and, in practice, the second fastest method known (after the general number field sieve). It is still the fastest for integers under 100 decimal digits or so, and is… …   Wikipedia

  • General number field sieve — In number theory, the general number field sieve (GNFS) is the most efficient classical algorithm known for factoring integers larger than 100 digits. Heuristically, its complexity for factoring an integer n (consisting of log2 n bits) is of …   Wikipedia

  • Dixon's factorization method — In number theory, Dixon s factorization method (also Dixon s random squares method[1] or Dixon s algorithm) is a general purpose integer factorization algorithm; it is the prototypical factor base method, and the only factor base method for which …   Wikipedia

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