π
Unicode name  GREEK SMALL LETTER PI  

Unicode block  Greek and Coptic  
Codepoint  U+03C0  

See also: ∏ [U+220F NARY PRODUCT], ㄇ [U+3107 BOPOMOFO LETTER M], ㅠ [U+3160 HANGUL LETTER YU], and Appendix:Variations of "p"
TranslingualEdit
SymbolEdit
π
 (mathematics) An irrational constant representing the ratio of the circumference of a circle to its diameter; approximately 3.14159265.
 (particle physics) pion, pi meson
 (mathematics) homotopy group
See alsoEdit
GreekEdit
LetterEdit
π • (p) (lowercase, uppercase Π)
 The lower case letter pi (πι), the 16th letter of the modern Greek alphabet.
NumeralEdit
π'
 The number 80 in Greek numerals.
,π
 The number 80,000 in Greek numerals.
 (The Greek letter pi.)