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Pi (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pi" in Simple English language version.

Last modified:

Ref.Un. Ref.Website
Global rank Simple English rank
32archive.org
6th place
3rd place
32web.archive.org
1st place
1st place
31wolfram.com
1,091st place
142nd place
22books.google.com
3rd place
4th place
21mathisfun.com
low place
2,253rd place
21mathforum.org
low place
4,925th place
11mathvault.ca
low place
109th place
11nasa.gov
12th place
39th place
11zenwerx.com
low place
low place
11chicagotribune.com
143rd place
118th place
11st-and.ac.uk
4,765th place
1,311th place
11math.com
low place
7,998th place
11guinnessworldrecords.com
873rd place
462nd place

archive.org (Global: 6th place; Simple English: 3rd place)

books.google.com (Global: 3rd place; Simple English: 4th place)

  • Arndt, Jörg; Haenel, Christoph (2006), Pi Unleashed, Springer-Verlag, ISBN 978-3-540-66572-4, English translation by Catriona and David Lischka
  • Cajori, Florian (2007). A History of Mathematical Notations: Vol. II. Cosimo, Inc. pp. 8–13. ISBN 978-1-60206-714-1. the ratio of the length of a circle to its diameter was represented in the fractional form by the use of two letters ... J.A. Segner ... in 1767, he represented 3.14159... by δ:π, as did Oughtred more than a century earlier

chicagotribune.com (Global: 143rd place; Simple English: 118th place)

guinnessworldrecords.com (Global: 873rd place; Simple English: 462nd place)

math.com (Global: low place; Simple English: 7,998th place)

  • "PI". 2000–2005. Retrieved 2010-06-06.

mathforum.org (Global: low place; Simple English: 4,925th place)

mathisfun.com (Global: low place; Simple English: 2,253rd place)

  • "Pi". www.mathisfun.com. Retrieved 2020-08-10.

mathvault.ca (Global: low place; Simple English: 109th place)

nasa.gov (Global: 12th place; Simple English: 39th place)

jpl.nasa.gov

st-and.ac.uk (Global: 4,765th place; Simple English: 1,311th place)

www-history.mcs.st-and.ac.uk

  • J.J. O'Connor; E.F. Robertson (August 2001). "Pi History". Retrieved 2010-06-05.

web.archive.org (Global: 1st place; Simple English: 1st place)

wolfram.com (Global: 1,091st place; Simple English: 142nd place)

mathworld.wolfram.com

  • Weisstein, Eric W. "Pi". mathworld.wolfram.com. Retrieved 2020-08-10.

zenwerx.com (Global: low place; Simple English: low place)