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See also: Φ [U+03A6 GREEK CAPITAL LETTER PHI], ф [U+0444 CYRILLIC SMALL LETTER EF], Ф [U+0424 CYRILLIC CAPITAL LETTER EF], Փ [U+0553 ARMENIAN CAPITAL LETTER PIWR], and φ.
Greek lc phi.png
φ U+03C6, φ
GREEK SMALL LETTER PHI
υ
[U+03C5]
Greek and Coptic χ
[U+03C7]

Contents

TranslingualEdit

Etymology 1Edit

Named after Ancient Greek Φειδίας (Pheidías) ("Phidias"), who supposedly used the golden ratio in his work, by mathematician Mark Barr.

SymbolEdit

φ

 
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Wikipedia
  1. (mathematics) The golden ratio, an irrational number with a value of approximately 1.618033988 which expresses the relationship that the sum of two quantities is to the larger quantity as the larger is to the smaller.

Etymology 2Edit

SymbolEdit

φ

  1. (mathematics) Euler's totient function, an arithmetic function that counts totatives

GreekEdit

LetterEdit

φ (f) (lowercase, uppercase Φ)

  1. The lower case letter phi (φι), the 21st letter of the modern Greek alphabet.

See alsoEdit

NumeralEdit

φ'

  1. The number 500 in Greek numerals.

  1. The number 500,000 in Greek numerals.