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Sigma vs Omega - What's the difference?

sigma | omega |

As nouns the difference between sigma and omega

is that sigma is sigma (greek letter) while omega is omega (greek letter).

sigma

English

Noun

(en noun)
  • The name for the eighteenth letter of the Classical]] and Modern Greek, the twentieth letter of Old and [[Ancient Greek, Ancient.
  • (mathematics) The symbol ? , used to indicate summation of a set or series.
  • (statistics) The symbol ? , used to indicate one standard deviation from the mean, particularly in a normal distribution.
  • * 2011 , Paul Rincon, (bbc.co.uk) LHC: Higgs boson 'may have been glimpsed'
    • None of the spikes seen by the experiments is at much more than the "two sigma" level of certainty.
    A level of "five sigma" is required to claim a discovery, meaning there is less than a one in a million chance the data spike is down to a statistical fluke.

    Derived terms

    * sigmalike * within one sigma: the range from the mean, plus or minus one standard deviation, usually covering 68% of the data points in a normal distribution

    omega

    English

    Noun

    (en-noun)
  • The twenty-fourth letter of the Classical]] and the Modern Greek alphabet, and the twenty-eighth letter of the Old and the Ancient Greek alphabet, i.e. the last letter of every Greek alphabet. Uppercase version: ; lowercase: [[?.
  • * 2013 , Albert Schachter & Fabienne Marchand, "Fresh Light on the Institutions and Religious Life of Thespiai: Sixe New Inscriptions from the Thespiai Survey", page 284 in'' Paraskevi Martzavou & ?Nikolaos Papazarkadas (editors), ''Epigraphical Approaches to the Post-Classical Polis
    • The fact that the letter was incised above the line indicates that it is probably an omega .
  • (idiomatic, often capitalized) The end; the final, last or ultimate in a sequence.
    • I am the Alpha and the Omega , the First and the Last, the Beginning and the End. — Revelation 22:13, New International Version.
  • * 2012 , FX Moore, Confed: 2721: Xenocide War , page 383
    • And there is always the Omega Option. At any time you can go to Manhome, go down to the vaults, lift the black cover on your clone's stasis chamber, and push the black button.
  • (physics) Angular velocity]]; symbol: [[?.
  • * 2013 , Issues in General Physics Research : 2013 Edition, page 1084
    • The ratio between the rho and omega cross section is obtained.

    Derived terms

    * antiomega *