| Reference number | AP/20/13/1 |
| Level | Item |
| Title | Unpublished manuscript, 'Démonstration de l'égalité à deux droits de la somme des angles d'un triangle quelconque, indépendamment de la théorie des paralléles et de la considération de l'infini' [Paper on the equality of angles of a triangle] by F [François] Paulet |
| Date | 24 May 1836 |
| Description | Paulet explains that a straight line forming an acute angle with another straight line, will, when sufficiently produced, meet any line perpendicular to the latter, on the side of the acute angle. He uses this to demonstrate the equality of the sum of the angles of a triangle to two right angles. Includes one page of figures.
Subject: Mathematics / Trigonometry
Received 2 June 1836. Communicated by P M [Peter Mark] Roget.
Written by Paulet in Geneva.
Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 3 of Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society] as 'Démonstration de l’égalité à deux droits de la somme des angles d’un triangle quelconque, indépendamment de la théorie des parallèles, et de la considération de l’infini'. |
| Extent | 6p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Access status | Closed |
| Access conditions | Not available to view, off site for conservation. Please refer to digital surrogate on Science in the Making. |
| Related material | DOI: 10.1098/rspl.1830.0254 |
Fellows associated with this archive
| Code | Name | Dates |
| NA6616 | Roget; Peter Mark (1779 - 1869); physician and philologist | 1779 - 1869 |