Mathematics
Found in 145 Collections and/or Records:
Probl: 13. lib. 3tii Diophanti, s.d.
A jotting on Diophantus.
Probl: impossibile de max: et min., c1696
A quandary, attributed to no one, but on paleographic grounds probably coeval with item 5 in Folio C.
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.
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 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
Quae de Craigii Methodo impressa dicenda sunt, 1696
Gregory finds a mistake in Craige's handling of a theorem by Barrow.