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Pi (letter): Wikis

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Pi uc lc.svg
Greek alphabet
Αα Alpha Νν Nu
Ββ Beta Ξξ Xi
Γγ Gamma Οο Omicron
Δδ Delta Ππ Pi
Εε Epsilon Ρρ Rho
Ζζ Zeta Σσς 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
Obsolete letters
Digamma uc lc.svg Digamma Qoppa uc lc.svg Qoppa
San uc lc.svg San Sampi uc lc.svg Sampi
Other characters
Stigma uc lc.svg Stigma Sho uc lc.svg Sho
Heta uc lc.svg Heta

Greek diacritics

Pi (uppercase Π, lower case π) is the sixteenth letter of the Greek alphabet, representing [p]. In the system of Greek numerals it has a value of 80. Letters that arose from pi include Cyrillic Pe (П, п), Coptic pi (Ⲡ, ⲡ), and Gothic pairthra (𐍀).

In Modern Greek, the name of the letter is pronounced [ˈpi]; in modern English, it is pronounced /ˈpaɪ/, in particular when referring to the mathematical constant (see below).

The upper-case letter Π is used as a symbol for:

The lower-case letter π is used as a symbol for:

Variant pi or "pomega" (\varpi\,\! or ϖ) is a glyph variant of lower case pi sometimes used in technical contexts as though it were a lower-case omega with a macron, though historically it is simply a cursive form of pi, with its legs bent inward to meet. It is used as a symbol for:

In Unicode, the code point for capital Π is U+03A0 and for lower-case π it is U+03C0. The code point for ϖ, called greek pi symbol, is U+03D6, and that for the product symbol ∏, called n-ary product, is U+220F.

In HTML, the capital letter Π can be produced using the codes Π or Π, and the lower-case by using π or π within the source code.

See also

References

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Simple English

Common letters
ΑaA ΜmEm
ΒbBe ΝnEn
GgGe ΟοO
ΔdDe ΠpPe
hHa ЖжZhe
ΕɛE RrAr
ΖzZe SsEs
ΗeEe ΤtTe
ΘөEth UuU
ΙiI FfEf
JjJe WwWa
ΚkKa ΧxXa
LlEl ОWоwWe
VvVe
Uncommon letters
Digamma Qoppa
San Sampi
Other letters
Stigma Sho

Greek alphabet

Pi (uppercase/lowercase Π π), is the letter of the Greek alphabet, used to represent the "p" sound in Ancient and Modern Greek. In the system of Greek numerals, it has a value of 80. Letters that came from it include the Roman P and Cyrillic П.



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