Geometry
Found in 50 Collections and/or Records:
Locus ad Circulum, 29 April 1680
A proposition in geometry. The last four pages are out of sequence, coming between C 125 and C 126.
Locus ad Rectam, 1680's
A proposition in geometry.
Possibly unrelated is the second page, captioned only 'Probl. And Youngson', and bearing the date 5 August 1680.
Methodus Tangentium demonstrata ..., not later than 1691
Exposition, by Leiden mathematician Burchard de Volder (possibly in his hand), of René-François de Sluse's method of tangents.
Nota in Geom: Cartes:, c1693
Notes on Cartesian geometry.
Notae in tractatum ... Cubus et Sphaera ... duplicata, 1699
Notes on a 1696 geometry article by one Joannes Ramon Coninkius (sic).
Notata in Beaune de Constitutione Equ: Cub:, c1690
Notes on the algebra of Cartesian geometry.
Probl: ... et theorema Hugeniarium ..., 1680's
Notes on Huygens and Deschales.
Probl: Opt Const. inserviens per F.H.D.L., 15 May 1687
A demonstratio in the geometry of optics from Gregory's Edinburgh days.
Quadratura trianguli per infinitas series, 1684
A note on quadrature of the triangle through infinite series. This was the subject of Gregory's first major publication.
Quaedam de conisectionibus, c1680
Undated notes on cone sections.