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  2. File:Pi-symbol.svg - Wikipedia

    en.wikipedia.org/wiki/File:Pi-symbol.svg

    The following 14 pages use this file: Talk:2001: A Space Odyssey (novel) Talk:Culture of West Bengal; Talk:RCA; Talk:Timeline of the far future/Archive 5

  3. Openclipart - Wikipedia

    en.wikipedia.org/wiki/Openclipart

    Openclipart, also called Open Clip Art Library, is an online media repository of free-content vector clip art.The project hosts over 160,000 free graphics and has billed itself as "the largest community of artists making the best free original clipart for you to use for absolutely any reason".

  4. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    The number π (/ p aɪ /; spelled out as "pi") is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.

  5. Clip art - Wikipedia

    en.wikipedia.org/wiki/Clip_art

    Examples of computer clip art, from Openclipart. Clip art (also clipart, clip-art) is a type of graphic art.Pieces are pre-made images used to illustrate any medium. Today, clip art is used extensively and comes in many forms, both electronic and printed.

  6. Approximations of π - Wikipedia

    en.wikipedia.org/wiki/Approximations_of_π

    The software may be obtained from the Pi-Hacks Yahoo! forum, or from Stu's Pi page. Super PI by Kanada Laboratory [101] in the University of Tokyo is the program for Microsoft Windows for runs from 16,000 to 33,550,000 digits. It can compute one million digits in 40 minutes, two million digits in 90 minutes and four million digits in 220 ...

  7. Wikipedia:Today's featured picture (animation)/January 20, 2007

    en.wikipedia.org/wiki/Wikipedia:Today's_featured...

    An animated image showing the definition of pi.A number line is marked off by a circle of unit diameter.Starting from zero, the circle "unrolls" its circumference.At one full turn, the unrolled circumference has extended to the point we call π.

  8. Leibniz formula for π - Wikipedia

    en.wikipedia.org/wiki/Leibniz_formula_for_π

    In mathematics, the Leibniz formula for π, named after Gottfried Wilhelm Leibniz, states that = + + = = +,. an alternating series.. It is sometimes called the Madhava–Leibniz series as it was first discovered by the Indian mathematician Madhava of Sangamagrama or his followers in the 14th–15th century (see Madhava series), [1] and was later independently rediscovered by James Gregory in ...

  9. Euler's identity - Wikipedia

    en.wikipedia.org/wiki/Euler's_identity

    is pi, the ratio of the circumference of a circle to its diameter. Euler's identity is named after the Swiss mathematician Leonhard Euler . It is a special case of Euler's formula e i x = cos ⁡ x + i sin ⁡ x {\displaystyle e^{ix}=\cos x+i\sin x} when evaluated for x = π {\displaystyle x=\pi } .