sieve series

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• 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 theory — is a set of general techniques in number theory, designed to count, or more realistically to estimate the size of, sifted sets of integers. The primordial example of a sifted set is the set of prime numbers up to some prescribed limit X .… …   Wikipedia

• sieve tube — n. Bot. a longitudinal tube in the phloem of flowering plants, consisting of a connected series of individual cells (sieve cells) and serving to conduct organic food materials through the plant …   English World dictionary

• sieve tube — sieve′ tube n. Bot. bot a vertical series of cylindrical cells in the phloem, specialized for the conduction of food materials • Etymology: 1870–75 …   From formal English to slang

• 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 tube — noun tube formed by cells joined end to end through which nutrients flow in flowering plants and brown algae • Hypernyms: ↑vascular tissue • Part Holonyms: ↑phloem, ↑bast * * * noun : a tube consisting of an end to end series of thin walled… …   Useful english dictionary

• sieve tube — Bot. 1. a vertical series of sieve cells in the phloem, specialized for the conduction of food materials. 2. a single sieve cell. [1870 75] * * * ▪ plant structure       in flowering plants, elongated living cells (sieve tube elements) of the… …   Universalium

• Sieve of Sundaram — In mathematics, the sieve of Sundaram is a simple deterministic algorithm for finding all prime numbers up to a specified integer. It was discovered by an Indian student S. P. Sundaram from Sathyamangalam in 1934. [cite journal |author=V.… …   Wikipedia

• sieve tube — noun Date: 1875 a tube consisting of an end to end series of thin walled living plant cells characteristic of the phloem and held to function chiefly in translocation of organic solutes …   New Collegiate Dictionary

• Special number field sieve — The special number field sieve (SNFS) is a special purpose integer factorization algorithm. The general number field sieve (GNFS) was derived from it.The special number field sieve is efficient for integers of the form r e plusmn; s , where r and …   Wikipedia

• Large sieve — In mathematics, the large sieve is a method of analytic number theory. As the name implies, it was developed in sieve theory, (for example) sifting from an integer sequence by means of congruence conditions modulo prime numbers in which a… …   Wikipedia