Gregory, James

Gregory, James,

1638–75, Scottish mathematician. He invented a reflecting telescope (1661), which he described in his Optica promota (1663). In 1668 he became professor of mathematics at the Univ. of St. Andrews and, in 1674, professor of mathematics at the Univ. of Edinburgh. He originated a photometric mode of measuring the distance of stars and wrote Geometriae pars universalis (1668) and Exercitationes geometricae (1668).

Gregory, James

 

Born 1638 in Aberdeen; died 1675 in Edinburgh. Scottish mathematician and astronomer. Member of the Royal Society of London (1668).

Gregory was a professor at the University of St. Andrews (from 1669) and the University of Edinburgh (from 1674). He developed one of the first designs for a reflecting telescope. He worked out a technique for calculating the area of a sector of a circle, hyperbola, and ellipse. This was related to his attempt to prove that circular and logarithmic functions cannot be reduced to algebraic operations. He calculated areas using series. In 1668, Gregory derived the formula for approximate integration, later rediscovered by the English mathematician T. Simpson.

WORKS

Wileitner, H. Istoriia matematiki ot Dekarta do serediny 19 stoletiia, 2nd ed. Moscow, 1966. (Translated from German.)
References in periodicals archive ?
Vanessa Fabian-Sollo, Emily Faulconer, Rebekah Galick, Sean Galka, Rachel Geller, True Gibson, Irene Globus-Harris, Nicholas Gombart, Olivia Goodheart, Selena Gregory, James Grossman, Grace Grymonpr-Dwyer, Noah Hadnutt, Ryan Hall, Iao Harrowe, Benjamin Harter, Cassandra Hatcher, Cassidy Hatcher, Dahlia Henderson, Jeremy Henninger-Chiang, Megan Henshaw, Molly Henshaw, Hazel Hering, Alyson Heusch, Tucker Hines, Zall Hirschstein, Michael Holland, Zo' Holub, Johanna Hostick, Zoe Hutson, Boran Israel-Megerssa, Solan Israel-Megerssa,
Also cycling to Paris are Kings Heath trio James Gregory, James Thompson, Lee McLaughlan, all 41, Earlswood-based Barry Durman, 61, and Solihull's Spencer Parkes, 52.
AT7, back row from left, Max McConnell (assistant manager), Maxtone McConnell, Unes Ako, Luke Gregory, James Bergin, Ricky Hill, Alex Carey, Chris Fletcher, Chris Coyle (manager).
Honors: Melissa Andrews, Joseph Balboni, Anne Bara, Adam Begin, John Celli, Brent Cote, Riley Crockett, Michael Cullen, Gina DiTomasso, Catherine Djerbaka, Tess Favini, Marlena Finn, Katelyn Fitzgerald, Andrew Gosselin, Tyler Gregory, James Guiry, Matthew Guruge, Max Havlin, Kimberly Hilton, Myles Holman, Robert Johnson, Katie Kennedy (Atkinson), Taylor Lively, Sarah Maloney, Samuel Ogden, Ashley Quatrale, Timothy Sarasin, Erik Scougal, Glen Shaw, Alexander Sheridan, Raziel Shields, Robert Stalker, Gabrielle Stephenson, Brittany Viola and Taylor Wilkie.
On the move: Kroll's five Birmingham partners (left to right) Chris Gregory, James Grenfell, Jo Wright, Roy Kishor and Adrian Wolstenholme