| 释义 |
sigma
sig·ma S0398500 (sĭg′mə)n.1. The 18th letter of the Greek alphabet. See Table at alphabet.2. A sigma factor.3. Statistics The standard deviation of a given probability distribution or a given set of data.
[Greek sīgma, of Phoenician origin; see smk in Semitic roots.]
sig′mate′ (-māt′) adj.sigma (ˈsɪɡmə) n1. (Letters of the Alphabet (Foreign)) the 18th letter in the Greek alphabet (Σ, σ, or, when final, ς), a consonant, transliterated as S2. (Mathematics) maths the symbol Σ, indicating summation of the numbers or quantities indicated[Greek, of Semitic origin; related to Hebrew samekh]sig•ma (ˈsɪg mə)
n., pl. -mas. the 18th letter of the Greek alphabet: Σ, σ, ς. [1600–10; < Latin < Greek sígma] sig•mate (ˈsɪg mɪt, -meɪt) adj. Thesaurus| Noun | 1. |  sigma - the 18th letter of the Greek alphabetGreek alphabet - the alphabet used by ancient Greeksalphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters" |
Translationssigma
sigma1. the 18th letter in the Greek alphabet (Σ, σ or, when final, ς), a consonant, transliterated as S 2. Maths the symbol Σ, indicating summation of the numbers or quantities indicated sigma (σ) The 18th letter of the Greek alphabet, used in stellar nomenclature usually to designate the 18th-brightest star in a constellation or sometimes to indicate a star's position in a group.sigma[′sig·mə] (invertebrate zoology) A C-shaped spicule. portico1. A covered entrance whose roof is supported by a series of columns or piers, commonly placed at the front entrance to a building. 2. A stoa.SIGMAA scientific visual programming environment from NASA.
http://fi-www.arc.nasa.gov/fia/projects/sigma/.sigma
σ , Σ1. The 18th letter of the Greek alphabet, sigma. 2. (σ) Symbol for reflection coefficient; standard deviation; a factor in prokaryotic RNA initiation; wavenumber; surface tension. 3. (Σ) Summation of a series.
sig·ma (sig'mă), The 18th letter of the Greek alphabet, σ.sigma (sĭg′mə)n. A sigma factor.
sig′mate′ (-māt′) adj.σ Abbreviation for standard deviation; reflection coefficient.
sig·ma (σ,Σ) (sig'mă) 1. The 18th letter of the Greek alphabet. 2. (σ) reflection coefficient;standard deviation; a factor in prokaryotic RNA initiation; surface tension3. (Σ) Summation of a series. sig·ma (sig'mă) 1. The 18th letter of the Greek alphabet (σ, Σ). 2. (σ) reflection coefficient; standard deviation; a factor in prokaryotic RNA initiation; surface tension3. (Σ) Summation of a series. LegalSeesFinancialSeeSSIGMA
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| SIGMA➣Software Industrialized Generation and Maintenance Aids | | SIGMA➣Sign and Mac | | SIGMA➣Society of Independent Gasoline Marketers of America | | SIGMA➣Support for Improvement in Governance and Management (EU, OECD) | | SIGMA➣Sealed Insulating Glass Manufacturers Association | | SIGMA➣Système d'Imagerie Gamma à Masque Alèatoire (French: Random Gamma Imaging System Mask) | | SIGMA➣Socio-Sexual Investigations of Gay Men and Aids (longitudinal study, England and Wales) | | SIGMA➣Science de l’Information Géoréférencée pour la Maîtrise de l’environnement et l’Aménagement des territoires | | SIGMA➣Simulation Guided Memory Analyzer | | SIGMA➣Sediment Identification for Geotechnics by Marine Acoustics | | SIGMA➣Sequential Information Gathering in Machines and Animals | | SIGMA➣Special Interest Group on Multimedia/Medical Applications | | SIGMA➣Gas-Particle Interactions in a Microgravity Flow Cell | | SIGMA➣Software Industrialized Generator & Maintenance Aids | | SIGMA➣Site Information Generation & Materiel Accountability Plan | | SIGMA➣Strategic Information for Global Markets in Agrochemicals | | SIGMA➣Student Information & Grades Management Application (University of British Columbia; Vancouver, BC, Canada) |
sigma
Related to sigma: Six SigmaWords related to sigmanoun the 18th letter of the Greek alphabetRelated Words- Greek alphabet
- alphabetic character
- letter of the alphabet
- letter
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