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pi: Quick Facts

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Facts

Also Known As π

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Topics

Key People

Portrait of Archimedes by Giuseppe Nogari shows an elderly man with white hair and beard, holding a compass, gazing downward, set against a dark background.
Archimedes
Greek mathematician and inventor
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al-Kāshī
Persian astronomer and mathematician
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Adrien-Marie Legendre
French mathematician
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Zhao Youqin
Chinese astronomer, mathematician, and Daoist
Johann Lambert, detail of a lithograph by Gottfried Englemann, after a portrait by Pierre-Roch Vigneron
Johann Heinrich Lambert
Swiss-German scientist and philosopher
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Ferdinand von Lindemann
German mathematician
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Zu Chongzhi
Chinese astronomer, mathematician, and engineer
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John Machin
English mathematician

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