pi (Q167)

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constant ratio of the circumference of a circle to its diameter
  • Archimedes' constant
  • π
  • pi number
  • ratio of circumference to diameter
  • 3.14...
  • tau over two
  • tau/2
  • τ/2
  • 0.5tau
  • (1/2)tau
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Language Label Description Also known as
default for all languages
π
    English
    pi
    constant ratio of the circumference of a circle to its diameter
    • Archimedes' constant
    • π
    • pi number
    • ratio of circumference to diameter
    • 3.14...
    • tau over two
    • tau/2
    • τ/2
    • 0.5tau
    • (1/2)tau

    Statements

    instance of
    transcendental number
    0 references
    real number
    0 references
    mathematical constant
    0 references
    UCUM constant
    0 references
    image
    Matheon2.jpg
    3,716 × 2,460; 7.52 MB
    0 references
    named after
    circle
    applies to name of subject
    Kreiszahl (German)
    0 references
    Ludolph van Ceulen
    applies to name of subject
    Ludolphsche Zahl (German)
    1 reference
    reference URL
    https://3.141592653589793238462643383279502884197169399375105820974944592.eu/die-geschichte-der-zahl-pi/ludolph-van-ceulen-und-die-ludolphsche-zahl/
    title
    Ludolph van Ceulen und die Ludolphsche Zahl (German)
    quotation
    Lange Zeit wurde die Zahl Pi auch die Ludolphsche Zahl [...] genannt. Und zwar zu Ehren des Mathematik- und Fechtlehrers Ludolph Van Ceulen, der viele Jahre seines Lebens in die Berechnung der Zahl Pi gesteckt hat. (German)
    language of work or name
    German
    retrieved
    12 August 2023
    Ludolph van Ceulen
    applies to name of subject
    Ludolfsche Zahl (German)
    1 reference
    reference URL
    https://3.141592653589793238462643383279502884197169399375105820974944592.eu/die-geschichte-der-zahl-pi/ludolph-van-ceulen-und-die-ludolphsche-zahl/
    title
    Ludolph van Ceulen und die Ludolphsche Zahl (German)
    quotation
    Lange Zeit wurde die Zahl Pi auch die [...] Ludolfsche Zahl genannt. Und zwar zu Ehren des Mathematik- und Fechtlehrers Ludolph Van Ceulen, der viele Jahre seines Lebens in die Berechnung der Zahl Pi gesteckt hat. (German)
    language of work or name
    German
    retrieved
    12 August 2023
    numeric value
    3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938
    applies to part, aspect, or form
    Euclidean distance
    sourcing circumstances
    possibly approximate value
    determination method or standard
    calculation
    2 references
    reference URL
    http://www.math.com/tables/constants/pi.htm
    language of work or name
    English
    retrieved
    26 February 2014
    title
    First 100 digits (English)
    reference URL
    https://oeis.org/A000796
    language of work or name
    English
    retrieved
    21 February 2015
    title
    Decimal expansion of Pi (or, digits of Pi) (English)
    quantity symbol (LaTeX)
    0 references
    hashtag
    π
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    notation
    pi
    0 references
    TeX string
    \pi
    0 references
    Unicode character
    π
    0 references
    Commons category
    Pi
    0 references

    Identifiers

    NDL Authority ID
    00562015
    0 references
    NL CR AUT ID
    ph117728
    subject named as
    Ludolfovo číslo
    0 references
    BabelNet ID
    00062194n
    0 references
    Brilliant Wiki ID
    pi
    0 references
    MathWorld ID
    Pi
    0 references
    Namuwiki ID
    원주율
    0 references
    NE.se ID
    pi
    0 references
    nLab ID
    pi
    0 references
    OEIS ID
    A000796
    0 references
    OpenMath ID
    nums1#pi
    0 references
    PlanetMath ID
    Pi
    0 references
    Quora topic ID
    Pi
    0 references
    Treccani ID
    pi-greco
    subject named as
    pi grèco
    0 references
    UCUM code
    [pi]
    0 references
    Vikidia article ID
    en:Pi_(math)
    0 references
    es:Pi
    0 references
    fr:Pi_(nombre)
    0 references
    WikiKids ID
    Pi_(wiskunde)
    0 references
    Zhihu topic ID
    19581830
    subject named as
    圆周率
    0 references
     
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