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Pi (Simple English Wikipedia)

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

refsWebsite
Global rank Simple English rank
2books.google.com
3rd place
2nd place
1mathvault.ca
low place
19th place
1mathisfun.com
low place
low place
1wolfram.com
513th place
25th place
1mathforum.org
low place
1,142nd place
1nasa.gov
75th place
30th place
1web.archive.org
1st place
1st place
1zenwerx.com
low place
low place
1chicagotribune.com
95th place
152nd place
1st-and.ac.uk
3,503rd place
216th place
1math.com
low place
4,174th place

books.google.com

  • 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

math.com

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

mathforum.org

mathisfun.com

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

mathvault.ca

  • "Compendium of Mathematical Symbols". Math Vault. 2020-03-01. Retrieved 2020-08-10.

nasa.gov

jpl.nasa.gov

st-and.ac.uk

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

wolfram.com

mathworld.wolfram.com

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

zenwerx.com