Mathematics
Found in 212 Collections and/or Records:
Probl: indeterminatus Arith: D. Ozonam, s.d.
An arithmetic proof. The 'D. Ozonam' may be Jacques Ozonam (1640-1717), famous for his 1693 "Méthode de lever les planes et les cartes..."
Probl: Vincentii Viviani, 2 August 1693
An unsuccessful attempt to prove Viviani's solution to the Florentine problem.
Problema Alhazeni, c1690
Huygens's treatment of a problem by Alhazen, which appears to have been copied out at the same time as item 23 before.
Problemata Proposita J. Young a D. Pitcairne, 1683-1687
Broadsheet excerpts of the problem and condemnation in the joust between Archibald Pitcairne and John Young, which lost the latter his mathematics chair at Edinburgh. There follows a rumination, perhaps in Pitcairne's hand or perhaps Gregory's, on scientific education.
Prop D.G. de Figura radii in medio diformi protractatus, 28 Dec. 1697
An abortive attempt by Gregory to show that atmospheric refraction bends a light ray into the form of a cycloid, the curve of quickest descent.
Propositiones D.A. Pitcairnei, c1692
4 scraps, the first three in Archibald Pitcairne's hand, containing scrawled thoughts on one or two geometric processions, and numerous fragments of book titles, names, and addresses, apparently all relating to Gregory's time in Holland. These may be all that is left of item 92.
Propositiones Quaedam de Ludo Aleae ..., s.d.
Propositions from Huygens on dicing and games of chance generally. (He may mean 'tessella' where he refers to 'tessera', or perhaps he refers to dominoes.)
Quadratura curva in l=dx(n-1), 8 June 1688
In which Gregory refines the integration technique he had developed in the Exercitatio.
Quadratura testudinis velifirmis Florentini in Phil. Trans., 1694
Quadratura Tschurnhausii, s.d.
An undated method of quadrature by 'Tschurnhaus', probably in the hand of David Gregory's father.