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Albert Girard

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French mathematician (1595-1632)

NetherlandsAcademicsLived 1595 to 1632 · aged 37
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Fame48.6
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Languages20
Peak1920s
In century#1,463

Albert Girard was a French-born mathematician. He studied at the University of Leiden. He "had early thoughts on the fundamental theorem of algebra" and gave the inductive definition for the Fibonacci numbers.

Also inDeutsch

Academics from Netherlands 6

Wim Crouwel48.7Frans Andriessen48.6Dirk Jan Struik48.9Nicolaas Govert de Bruijn48.5Herman Bavinck49.6Marcus Zuerius van Boxhorn48.5

About this person

Albert Girard was a French-born mathematician. He studied at the University of Leiden. He "had early thoughts on the fundamental theorem of algebra" and gave the inductive definition for the Fibonacci numbers. He was the first to use the abbreviations 'sin', 'cos' and 'tan' for the trigonometric functions in a treatise. Girard was the first to state, in 1625, that each prime of the form 1 mod 4 is the sum of two squares. It was said that he was quiet-natured and, unlike most mathematicians, did not keep a journal for his personal life.

Country
Netherlands
Category
Academics
Type
Academic
Status
deceased
Dates
Lived 1595 to 1632 · aged 37
Written about in
20 languages

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