James Gregory (mathematician)
James Gregory FRS (November 1638 – October 1675) was a Scottish mathematician and astronomer. His surname is sometimes spelt as Gregorie, the original Scottish spelling. He described an early practical design for the reflecting telescope – the Gregorian telescope – and made advances in trigonometry, discovering infinite series representations for several trigonometric functions.
James Gregory | |
|---|---|
James Gregory (1638–1675) | |
| Born | November 1638 Drumoak, Aberdeenshire, Scotland |
| Died | October 1675 (aged 36) Edinburgh, Scotland |
| Nationality | Scottish |
| Citizenship | Scotland |
| Alma mater | Marischal College, University of Aberdeen University of Padua |
| Known for | Gregorian telescope Gregory coefficients Diffraction grating Fundamental theorem of the calculus Integral of the secant function |
| Scientific career | |
| Fields | Mathematics Astronomy |
| Institutions | University of St. Andrews University of Edinburgh |
| Notes | |
In his book Geometriae Pars Universalis (1668) Gregory gave both the first published statement and proof of the fundamental theorem of the calculus (stated from a geometric point of view, and only for a special class of the curves considered by later versions of the theorem), for which he was acknowledged by Isaac Barrow.
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