sigma
听听怎么读
英 [ˈsɪgmə]
美 ['sɪɡmə]
是什么意思
希腊字母表的第十八字母（∑，σ）；
变形
复数：sigmas
英英释义
sigma[ 'siɡmə ]
- n.the 18th letter of the Greek alphabet
学习怎么用
词组短语
six sigma六标准差
双语例句
用作名词(n.)
- Summations are almost invariably indicated ellipses instead of the more prevalent sigma notation.
在表示“连加”的式子中，几乎一成不变地使用省略号来代替更为流行的“∑”符号。
权威例句
Understanding Delta-Sigma Data Converters14-3-3 sigma is a p53-regulated inhibitor of G2/M progressionThe sigma 70 family: sequence conservation and evolutionary relationships.Understanding Delta-Sigma Data Converters: John Wiley& SonsA Use of Double Integration in Sigma Delta ModulationSigma-point kalman filters for probabilistic inference in dynamic state-space modelsStructure and function of bacterial sigma factors.Sigma-1 receptor chaperones at the ER-mitochondrion interface regulate Ca(2+) signaling and cell survivalSigma-point Kalman filtering for battery management systems of LiPB-based HEV battery packs : Part 2: Simultaneous state and paramet...Signal transduction and regulatory mechanisms involved in control of the sigma(S) (RpoS) subunit of RNA polymerase
