See also:Φ[U+03A6 GREEK CAPITAL LETTER PHI],
ϕ[U+03D5 GREEK PHI SYMBOL],
ф[U+0444 CYRILLIC SMALL LETTER EF],
Ф[U+0424 CYRILLIC CAPITAL LETTER EF],
Փ[U+0553 ARMENIAN CAPITAL LETTER PIWR],andφ. - ϕ(mathematics, technical)
Named by mathematician Mark Barr afterAncient GreekΦειδίας(Pheidías) (Phidias), who supposedly used the golden ratio in his work.
φ
- (mathematics) Thegolden ratio, anirrationalnumber with a value of approximately 1.618033988 which expresses the relationship that thesum of two quantities is to the larger quantity as the larger is to the smaller.
φ
- (mathematics)Euler's totient function, an arithmetic function that countstotatives
- (UPA) avoiceless labiodental fricative (IPA[ɸ]).
- (Cyrillic, phonetics) a voiceless labiodental fricative (IPA[ɸ]).
Derived from itsmajuscule counterpartΦ.
φ• (ph) (lowercase,uppercaseΦ)
- Lower-casephi (φεῖ), the 21st letter of the ancientGreek alphabet. It represented thevoicelessaspiratedbilabial plosive/pʰ/ and later thevoiceless labiodental fricative/f/. It is preceded byυ and followed byχ.
See alsophi
- (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(W)ϝ(w),Ͷͷ,Ͱ(H)ͱ(h),Ϻ(S)ϻ(s),Ϟϟ,Ϙ(Q)ϙ(q),Ͳ(S)ͳ(s)
- (punctuation)·;
- (diacritics)᾿῾◌́◌̀῀¨
φ• (f) (lowercase,uppercaseΦ)
- Thelower case letterphi (φι), the 21st letter of the modernGreek alphabet.
- (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(W)ϝ(w),Ͷͷ,Ͱ(H)ͱ(h),Ϻ(S)ϻ(s),Ϟϟ,Ϙ(Q)ϙ(q),Ͳ(S)ͳ(s)
- (punctuation)·;
- (diacritics)᾿῾◌́◌̀῀¨
- φ΄
- ͵φ
