Upsilon

Letter in the Greek alphabet

Upsilon (uppercase/lowercase Υ υ) is the 20th letter of the Greek alphabet. It is used to represent the "u" sound in Ancient Greek and "i" in Modern Greek. In the system of Greek numerals, it has a value of 400. Letters that came from it include the Roman U, V and Y, and the Cyrillic У.

Upsilon uc lc.svg
Greek alphabet
ΑαAlphaΝνNu
ΒβBetaΞξXi
ΓγGammaΟοOmicron
ΔδDeltaΠπPi
ΕεEpsilonΡρRho
ΖζZetaΣσSigma
ΗηEtaΤτTau
ΘθThetaΥυUpsilon
ΙιIotaΦφPhi
ΚκKappaΧχChi
ΛλLambdaΨψPsi
ΜμMuΩωOmega
Other letters
ϜϝDigammaϞϟKoppa
ϚϛStigmaϠϡSampi
ͰͱHetaϷϸSho
ϺϻSan
CategoryCommons

In mathematics, the uppercase is used to represent the upsilon function (a variant of Riemann zeta function), while the lowercase is used as a general variable.[1] In physics, the uppercase is used to represent an upsilon meson. In astrology, the same letter is used for the sign of Aries.[2]

Related pages

References

  1. "Greek/Hebrew/Latin-based Symbols in Mathematics". Math Vault. 2020-03-20. Retrieved 2020-10-07.
  2. "Upsilon Symbol in Greek Alphabet". www.greeksymbols.net. Retrieved 2020-10-07.


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