John Wallis

John Wallis (/ˈwɒlɪs/; Latin: Wallisius; 3 December [O.S. 23 November] 1616  8 November [O.S. 28 October] 1703) was an English clergyman and mathematician, who is given partial credit for the development of infinitesimal calculus.

John Wallis
Born3 December [O.S. 23 November] 1616
Ashford, Kent, England
Died8 November 1703(1703-11-08) (aged 86) [O.S. 28 October 1703]
Oxford, Oxfordshire, England
NationalityEnglish
EducationFelsted School, Emmanuel College, Cambridge
Known forWallis product
Inventing the symbol
Extending Cavalieri's quadrature formula
Coining the term "momentum"
SpouseSusanna Glynde (m. 1645)
Children3, including Anne, Lady Blencowe
Scientific career
FieldsMathematics
Institutions
  • Queens' College, Cambridge
  • University of Oxford
Academic advisorsWilliam Oughtred
Notable studentsWilliam Brouncker

Between 1643 and 1689 he served as chief cryptographer for Parliament and, later, the royal court. He is credited with introducing the symbol ∞ to represent the concept of infinity. He similarly used 1/∞ for an infinitesimal. John Wallis was a contemporary of Newton and one of the greatest intellectuals of the early renaissance of mathematics.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.