π

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Greek uc pi.png
π U+03C0, π
GREEK SMALL LETTER PI
ο
[U+03BF]
Greek and Coptic ρ
[U+03C1]
See also: Π [U+03A0 GREEK CAPITAL LETTER PI], [U+220F N-ARY PRODUCT], [U+3107 BOPOMOFO LETTER M], , and Appendix:Variations of "p"

Translingual[edit]

This mosaic is outside the mathematics building at the Technische Universität Berlin.
When a circle's diameter is 1 unit, its circumference is π units.
When a circle's radius is 1 unit, its circumference is 2π units.

Symbol[edit]

π

  1. (mathematics) An irrational constant representing the ratio of the circumference of a circle to its diameter; approximately 3.14159265.
  2. (particle physics) pion, pi meson
  3. (mathematics) homotopy group

See also[edit]


Greek[edit]

Letter[edit]

π ‎(p) ‎(lowercase, uppercase Π)

  1. The lower case letter pi (πι), the 16th letter of the modern Greek alphabet.

Numeral[edit]

π'

  1. The number 80 in Greek numerals.

  1. The number 80,000 in Greek numerals.
  2. (The Greek letter pi.)

See also[edit]

see: Appendix:Greek alphabet