φ
Appearance
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.
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Character variations
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Translingual
[edit]Etymology 1
[edit]Named by mathematician Mark Barr after Ancient Greek Φειδίας (Pheidías) (Phidias), who supposedly used the golden ratio in his work.
Symbol
[edit]φ
- (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 2
[edit]Symbol
[edit]φ
- (mathematics) Euler's totient function, an arithmetic function that counts totatives
- (UPA) a voiceless labiodental fricative (IPA [ɸ]).
Ancient Greek
[edit]Etymology
[edit]Derived from its majuscule counterpart Φ.
Letter
[edit]φ • (ph) (lowercase, uppercase Φ)
- Lower-case phi (φεῖ), the 21st letter of the ancient Greek alphabet. It represented the voiceless aspirated bilabial plosive /pʰ/ and later the voiceless labiodental fricative /f/. It is preceded by υ and followed by χ.
Derived terms
[edit]See also phi
See also
[edit]- (Greek-script letters) Α α, Β β, Γ γ, Δ δ, Ε ε, Ζ ζ, Η η, Θ θ, Ι ι, Κ κ, Λ λ, Μ μ, Ν ν, Ξ ξ, Ο ο, Π π, Ρ ρ, Σ σ ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, Ω ω
- (non-Classical letters) Ϝ ϝ, Ͷ ͷ, Ͱ ͱ, Ϻ ϻ, Ϙ ϙ, Ͳ ͳ
- (punctuation) · ;
- (diacritics) ᾿ ῾ ◌́ ◌̀ ῀ ¨
Greek
[edit]Letter
[edit]φ • (f) (lowercase, uppercase Φ)
- The lower case letter phi (φι), the 21st letter of the modern Greek alphabet.
See also
[edit]Categories:
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