James Gregory 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 telesco
Gregory by John Scougal, c. 1675
Vera circuli et hyperbolae quadratura, 1667
David Gregory FRS was a Scottish mathematician and astronomer. He was professor of mathematics at the University of Edinburgh, and later Savilian Professor of Astronomy at the University of Oxford, an
James Gregory (mathematician)
…of Elrick, Aberdeen; their son James was Professor of Physics at King's College, Aberdeen. He was the grandfather of John Gregory (FRS 1756); uncle of David Gregorie (FRS 1692) and brother of David Gregory (1627–1720), a physician and inventor. About a year after assuming the Chair of Mathematics at Edinburgh, James…
David gregory mathematician
Astronomiae physicae et geometricae elementa, 1726
Hand-written note on game theory, from the papers of David Greory.