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  2. Pi (letter) - Wikipedia

    en.wikipedia.org/wiki/Pi_(letter)

    Pi (/ˈpaɪ/; Ancient Greek /piː/ or /peî/, uppercase Π, lowercase π, cursive ϖ; Greek: πι) is the sixteenth letter of the Greek alphabet, meaning units united, and representing the voiceless bilabial plosive IPA:.

  3. List of topics related to π - Wikipedia

    en.wikipedia.org/wiki/List_of_topics_related_to_π

    A History of Pi (book) Indiana Pi Bill; Leibniz formula for pi; Lindemann–Weierstrass theorem (Proof that π is transcendental) List of circle topics; List of formulae involving π; Liu Hui's π algorithm; Mathematical constant (sorted by continued fraction representation) Mathematical constants and functions; Method of exhaustion; Milü; Pi ...

  4. List of formulae involving π - Wikipedia

    en.wikipedia.org/wiki/List_of_formulae_involving_π

    where C is the circumference of a circle, d is the diameter, and r is the radius.More generally, = where L and w are, respectively, the perimeter and the width of any curve of constant width.

  5. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    This series converges much more rapidly than most arctan series, including Machin's formula. [131] Bill Gosper was the first to use it for advances in the calculation of π , setting a record of 17 million digits in 1985. [ 132 ]

  6. Piphilology - Wikipedia

    en.wikipedia.org/wiki/Piphilology

    Computers use pi, the constant, when polite, Or gentle data for sad tracking aid at eclipse. In the fantasy book, Somewhen by David Saul, a 35-word piem both provides a description of the constant pi and the digits. The text is also laid out as a circle to provide another clue to the readers as to the purpose of the poem.

  7. William Jones (mathematician) - Wikipedia

    en.wikipedia.org/wiki/William_Jones_(mathematician)

    William Jones, FRS (1675 – 1 July 1749 [1]) was a Welsh mathematician best known for his use of the symbol π (the Greek letter Pi) to represent the ratio of the circumference of a circle to its diameter. He was a close friend of Sir Isaac Newton and Sir Edmund Halley.

  8. Category:Pi - Wikipedia

    en.wikipedia.org/wiki/Category:Pi

    This category includes articles related to the mathematical constant pi (π), which represents the ratio of a circle's circumference to its diameter. For other uses, see Pi (disambiguation) . The main article for this category is Pi .

  9. Chronology of computation of π - Wikipedia

    en.wikipedia.org/wiki/Chronology_of_computation...

    Found several rapidly converging infinite series of π, which can compute 8 decimal places of π with each term in the series. Since the 1980s, his series have become the basis for the fastest algorithms currently used by Yasumasa Kanada and the Chudnovsky brothers to compute π. 1946 D. F. Ferguson: Made use of a desk calculator [24] 620: 1947 ...