Phi

Phi (uppercase Φ, lowercase or ; Ancient Greek: ϕεῖ, pheî, [pʰé͜e]; modern Greek: φι, fi, [fi]; English: /faɪ/) is the 21st letter of the Greek alphabet. In Ancient Greek, it represented an aspirated voiceless bilabial plosive ([pʰ]), which was the origin of its usual romanization as "ph". In modern Greek, it represents a voiceless labiodental fricative ([f]) and is correspondingly romanized as "f". Its origin is uncertain but it may be that phi originated as the letter qoppa and initially represented the sound /kʷʰ/ before shifting to Classical Greek [pʰ]. In traditional Greek numerals, phi has a value of 500 (φʹ) or 500 000 (͵φ). The Cyrillic letter Ef (Ф, ф) descends from phi.

Phi is also used as a symbol for the golden ratio and on other occasions in math and science. This use is separately encoded as the Unicode glyph ϕ. The modern Greek pronunciation of the letter is sometimes encountered in English (as /fiː/) when the letter is being used in this sense.

Use as a symbol

The lower-case letter φ (or often its variant, ϕ) is often used to represent the following:

Phi (KinKi Kids album)

Phi (stylized as Φ) is the tenth studio album of the Japanese duo KinKi Kids. It is the first album by KinKi Kids to have a Greek-lettered title, rather than the traditional Latin-lettered album title. The album was certified platinum by the RIAJ for 250,000 copies shipped to stores in Japan.

Track list

Charts

References

External links

Phi (Truckfighters album)

Phi is the second studio album by Swedish rock band Truckfighters, released 5 October 2007 on Fuzzorama Records.

Track listing

All tracks written by Truckfighters.

Personnel

Truckfighters

Additional musicians

References

Phi (disambiguation)

Phi (uppercase Φ, lowercase φ, or math symbol ϕ) is the 21st letter of the Greek alphabet.

Phi or PHI may also refer to:

Mathematics

Medicine and health

Science

Sport