What's the difference between
and
Enter two words to compare and contrast their definitions, origins, and synonyms to better understand how those words are related.

Phi vs Pi - What's the difference?

phi | pi |

In mathematics terms the difference between phi and pi

is that phi is the golden ratio while pi is an irrational and transcendental constant representing the ratio of the circumference of a Euclidean circle to its diameter; approximately 3.1415926535897932384626433832795; usually written π.

As nouns the difference between phi and pi

is that phi is Φ, the 21st letter of the Euclidean and modern Greek alphabet, usually romanized as "ph" while pi is the name of the sixteenth letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek.

As a verb pi is

to spill or mix printing type. Also, "to pie".

As an adjective pi is

not part of the usual font character set; especially, non-Roman type or symbols as opposed to standard alphanumeric Roman type.

As an abbreviation pi is

pica (conventionally, 12 points = 1 pica, 6 picas = 1 inch.

As an initialism PI is

initialism of partial induction|lang=en see AI.

phi

English

(wikipedia phi)

Noun

(en noun)
  • and [[Greek alphabet, modern Greek alphabet, usually romanized as "ph".
  • (mathematics) The golden ratio.
  • A visual illusion whereby a sequential pattern of lights produces a false sense of motion.(fact)

    • See also

    * (Greek letter) Previous: upsilon, Next: chi

    Anagrams

    *

    References

    ----

    pi

    English

    Noun

    (en noun)
  • The name of the sixteenth letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek.
  • (mathematics) An irrational and transcendental constant representing the ratio of the circumference of a Euclidean circle to its diameter; approximately 3.1415926535897932384626433832795; usually written .
  • (metal typesetting) Metal type that has been spilled, mixed together, or disordered. Also called pie.

    • Synonyms

    * (irrational constant) Archimedes' constant, Ludolph's constant, Ludolph's number

    Verb

  • (metal typesetting) To spill or mix printing type. Also, "to pie".

    • Adjective

    (-)
  • (typography) Not part of the usual font character set; especially, non-Roman type or symbols as opposed to standard alphanumeric Roman type.
    • In computing, pi characters are entered with special combinations of keys like ctrl-alt-x, or via character sequences such as &
  • 123;.

    • Abbreviation

    (Abbreviation) (head)
  • (typography) pica (conventionally, 12 points = 1 pica, 6 picas = 1 inch)
  • piaster
  • pious

    • Related terms

    * cicero * pica stick

    Anagrams

    * English two-letter words ----