Mathematics
Found in 222 Collections and/or Records:
Demonstratio regularum Huddonii..., 1708
Several demonstrations of axioms derived by Hudde, in letter form, addressed to one M. Sauveur.
Also a record of a conversation with M. Fatio, fellow mathematician and confirmed religious fanatic.
Two unrelated pages follow, before item 66: a pair of printed leaves in optics.
Demonstration que la Cycloide est la Courve de la ... descent, 1699
Gregory's copy of de l'Hôpital's analysis of the curve of most rapid descent into a cycloid.
D.G.'s Demonstratio Methodi Slusii de Tang., c1683
Gregory's early attempt to prove Sluse's rule for tangents from Fermat or from Barrow.
DG's letter to Dr Aldrich about the present series ..., 11 October 1694
English note about the editorial presentation of a published series. Henry Aldrich was Gregory's friend and also Dean of Christ Church.
D.T. Nova methodus determinandi Maxima et Minima, c1690
Hand-copy of an article (Act. Eruditorum Lipsiae, Mar. 1683) by Tschirnhaus, on maxima and minima. The hand may not be Gregory's.
Ejusdem Marchionis Inventis solidi cui minime..., after 1699
Notes on de l'Hôpital's analysis of curved solids.
Epist ad D. Hugenium..., 10 September 1693
Draft of a letter to Christiaan Huygens, in which Gregory follows up on his promise in Holland to send along his 'second method' of quadrature in detail.
Epistola de quadraturis Dav: Gre: ad Wallisium missa et vol: alt: impressa, 1 July 1692
Draft of a letter (final version dated 21 July) to John Wallis, who wished to include Gregory's 'second method' of quadrature in the 1693 revision of his 'Algebra'.
Ex Scriptis H. van Heurat, s.d.
A writeup of Heurat's theorems on the quadrature of curves, possibly written out by one 'D Verwer'.
Ex Tschurnhausii Theoremate et Methodo Deducitur Canon meus, 1688
A 11-page tranche of workpapers in which Gregory derives his own conclusions from the work of Tchirnhausen.
