Upsilon facts for kids
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Quick facts for kids Greek alphabet |
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|---|---|---|---|
| Αα | Alpha | Νν | Nu |
| Ββ | Beta | Ξξ | Xi |
| Γγ | Gamma | Οο | Omicron |
| Δδ | Delta | Ππ | Pi |
| Εε | Epsilon | Ρρ | Rho |
| Ζζ | Zeta | Σσ | Sigma |
| Ηη | Eta | Ττ | Tau |
| Θθ | Theta | Υυ | Upsilon |
| Ιι | Iota | Φφ | Phi |
| Κκ | Kappa | Χχ | Chi |
| Λλ | Lambda | Ψψ | Psi |
| Μμ | Mu | Ωω | Omega |
| Other letters | |||
| Ϝϝ | Digamma | Ϟϟ | Koppa |
| Ϛϛ | Stigma | Ϡϡ | Sampi |
| Ͱͱ | Heta | Ϸϸ | Sho |
| Ϻϻ | San | ||
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.
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. In physics, the uppercase is used to represent an upsilon meson. In astrology, the same letter is used for the sign of Aries.
Related pages
Images for kids
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The Greek alphabet on a black figure vessel, with a V-shaped upsilon
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Geoffroy Tory Ypsilon
See also
In Spanish: Υ para niños
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Upsilon Facts for Kids. Kiddle Encyclopedia.