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<mapframe text="Downtown [[wikipedia:San Francisco|San Francisco]]" width=250 height=250 zoom=13 latitude=37.8013 longitude=-122.3988 />
{{ sidebar
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| name = Pi box
<maplink text="State of Colorado, outlined" zoom=7 > { "type": "ExternalData", "service": "geoshape", "ids": "Q1261" } </maplink>
| pretitle = Part of [[:Category:Pi|a series of articles]] on the
| title = mathematical constant [[Pi|{{pi}}]]
| image = {{#ifeq: {{PAGENAME}}|Pi|[[File:Pi-unrolled-720.gif|frameless|link=]]}}
| class = hlist
|content0 = '''{{gaps|3.14159|26535|89793|23846|26433...}}'''
| heading1 = Uses
| content1 =
* [[Area of a circle]]
* [[Circumference]]
* [[List of formulae involving π|Use in other formulae]]
| heading2 = Properties
| content2 =
* [[Proof that π is irrational|Irrationality]]
* [[Lindemann–Weierstrass theorem|Transcendence]]
| heading3 = Value
| content3 =
* [[Proof that 22/7 exceeds π|Less than 22/7]]
* [[Approximations of π|Approximations]]
* [[Piphilology|Memorization]]
| heading4 = People
| content4 =
* [[Method of exhaustion#Use by Archimedes|Archimedes]]
* [[Liu Hui's π algorithm|Liu Hui]]
* [[Zu Chongzhi]]
* [[Aryabhata]]
* [[Madhava of Sangamagrama|Madhava]]
* [[Ludolph van Ceulen]]
* [[Seki Takakazu#Calculation of Pi|Seki Takakazu]]
* [[Takebe Kenko#Legacy| Takebe Kenko]]
* [[William Jones (mathematician)|William Jones]]
* [[John Machin]]
* [[William Shanks]]
* [[John Wrench]]
* [[Chudnovsky brothers]]
* [[Yasumasa Kanada]]
| heading5 = History
| content5 =
* [[Chronology of computation of π|Chronology]]
* [[A History of Pi|Book]]
| heading6 = In culture
| content6 =
* [[Indiana Pi Bill|Legislation]]
* [[Pi Day]]
| heading7 = Related topics
| content7 =
* [[Squaring the circle]]
* [[Basel problem]]
* [[Six nines in pi|Six nines in {{pi}}]]
* [[List of topics related to π |Other topics related to {{pi}}]]
}}<noinclude>{{doc|content=
==People==
{{main|Chronology of computation of π|l1=Chronology of computation of {{pi}}}}
People are ordered by their birth year.
#[[Archimedes]] (c. 287 BC - c. 212 BC)
#[[Liu Hui]] (3rd century)
#[[Zu Chongzhi]] (429 - 500)
#[[Aryabhata]] (476 - 550)
#[[Madhava of Sangamagrama|Madhava]] (1340 - 1425)
#[[Ludolph van Ceulen]] (1540 - 1610)
#[[Seki Takakazu#Calculation of Pi|Seki Takakazu]] (1642 - 1708)
#[[Takebe Katahiro#Legacy|Takebe Katahiro]] (1664 - 1739)
#[[William Jones (mathematician)|William Jones]] (1675 - 1749)
#[[John Machin]] (1686 - 1751)
#[[William Shanks]] (1812 - 1882)
#[[John Wrench]] (October 13, 1911 - February 27, 2009)
#[[Chudnovsky brothers]] (David Volfovich in 1947; Gregory Volfovich in 1952)
#[[Yasumasa Kanada]] (1949 - )
[[Category:Mathematics sidebar templates]]
}}</noinclude>
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