| Reference number | AP/14/18 |
| Level | File |
| Title | Unpublished paper and letter, 'Problem. To trisect, or divide into three equal angles, a given rectilineal angle' by James Ryan |
| Date | [1830] |
| Description | Ryan explains his method of trisecting a rectilineal angle through plane geometry, using numerous geometric examples to illustrate his methodology. Four figures included in the text. Preceded by a covering letter from Ryan to Davies Gilbert.
Subject: Mathematics |
| Extent | 9p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Digital images | View item on Science in the Making |
| Access status | Open |
| Related records in the catalogue | AP/14/18/1 |
| AP/14/18/2 |
Fellows associated with this archive
| Code | Name | Dates |
| NA8707 | Gilbert; Davies (1767-1839) | 1767-1839 |