Phi - Simple English Wikipedia, The Free Encyclopedia

Jump to content

Contents

move to sidebar hide

• Beginning
• 1 Related pages
• 2 References

• Page
• Talk

English

• Read
• Change
• Change source
• View history

Tools Tools move to sidebar hide Actions

• Read
• Change
• Change source
• View history

General

• What links here
• Related changes
• Upload file
• Permanent link
• Page information
• Cite this page
• Get shortened URL
• Download QR code
• Switch to legacy parser

Print/export

• Make a book
• Download as PDF
• Page for printing

In other projects

• Wikimedia Commons
• Wikidata item

Appearance move to sidebar hide From Simple English Wikipedia, the free encyclopedia For other uses, see Phi (disambiguation).

Greek alphabet
Αα Alpha Νν Nu Ββ Beta Ξξ Xi Γγ Gamma Οο Omicron Δδ Delta Ππ Pi Εε Epsilon Ρρ Rho Ζζ Zeta Σσς Sigma Ηη Eta Ττ Tau Θθ Theta Υυ Upsilon Ιι Iota Φφ Phi Κκ Kappa Χχ Chi Λλ Lambda Ψψ Psi Μμ Mu Ωω Omega
History
Archaic local variants Diacritics Ligatures Numerals ϛ (6) ϟ (90) ϡ (900)
Use in other languages
Bactrian Coptic Albanian
Related topics
Use as scientific symbols
Book Category Commons
v t e

Phi (uppercase/lowercase Φ φ), is the 21st letter of the Greek alphabet, used to represent the "ph" sound in Ancient Greek. This sound changed to "f" some time in the 1st century AD, and in Modern Greek the letter denotes the "f" sound. In the system of Greek numerals, it has a value of 500. The Cyrillic letter Ф came from Phi. In English, φ is pronounced like "f" but transliterated (re-written) as "ph" in words which originate in Ancient Greek. In those words which originate in Modern Greek, such as feta cheese, φ is transliterated as "f". The letter Phi is used to represent the golden ratio (which is about 1.618).[1][2]

Related pages

[change | change source]

• Euler's totient function

References

[change | change source]

1. ↑ "Compendium of Mathematical Symbols". Math Vault. 2020-03-01. Retrieved 2020-08-10.
2. ↑ Weisstein, Eric W. "Golden Ratio". mathworld.wolfram.com. Retrieved 2020-08-10.

This short article about Europe can be made longer. You can help Wikipedia by adding to it. Retrieved from "https://simple.wikipedia.org/w/index.php?title=Phi&oldid=10554938" Category:

• Greek alphabet

Hidden categories:

• Hatnote templates using unusual parameters
• Europe stubs

Search Search Toggle the table of contents Phi 89 languages Add topic