John Machin (bapt. c. 1686 – June 9, 1751) was a professor of astronomy at Gresham College, London. He is best known for developing a quickly converging...

John Machin (1624–1664), was an English nonconformist priest. Machin was born at Seabridge, in the parish of Stoke-upon-Trent, Staffordshire, on 2 Oct...

are from the "ready pen of the truly ingenious Mr. John Machin", leading to speculation that Machin may have employed the Greek letter before Jones. Jones'...

British football player Henry Machin (1832–1918), Quebec bureaucrat John Machin (1680–1751), British mathematician Mel Machin (born 1945), British football...

a circle) to a large number of digits. They are generalizations of John Machin's formula from 1706: π 4 = 4 arctan ⁡ 1 5 − arctan ⁡ 1 239 {\displaystyle...

LL.B. in 1709 and LL.D. in 1714. Taylor studied mathematics under John Machin and John Keill, leading to Taylor obtaining a solution to the problem of "center...

(}{\frac {8}{7}}\cdot {\frac {8}{9}}{\Big )}\cdot \;\cdots } In 1706, John Machin used Gregory's series (the Taylor series for arctangent) and the identity...

Buckley Machin (21 October 1901 – 20 June 1963) was an English-born Australian politician. He was born in Worksop in Nottinghamshire to coal miner John Machin...

Smith, E. A. (1999). George IV. Yale University Press. ISBN 0-300-07685-1. Machin, G. I. T. (1964). The Catholic Question in English Politics 1820 to 1830...

mathematicians used additional correction terms to speed convergence. John Machin (1706) expressed ⁠ 1 4 π {\displaystyle {\tfrac {1}{4}}\pi } ⁠ as a sum...