| Reference number | CLP/24/11/4 |
| Alternative reference number | CLP/24/11 p3 |
| Level | Item |
| Title | Diagram, The Parisian problem by John Collins |
| Date | December 1667/January 1668 |
| Description | Diagram of John Collins's solution to the ‘French’ or ‘Parisian’ problem set as a challenge by François Dulaurens. Shows drawings of circles with lines crossing into them, and angles within these, alonside mathematical calculations.
The problem, as understood by John Wallis, was as follows: 'given in number the circle CBD with radius CB, and the inscribed line BD protracted as far as may be desired beyond the circle, yet so that BY drawn parallel to CF may cut the circle in Y. To find the true value of the line BY, not an approximation (which may easily be obtained from a table of sines)'.
Subject: Mathematics |
| Extent | 1p |
| Format | Diagram |
| Physical description | Ink on paper |
| Access status | Open |
| Related records in the catalogue | CLP/24/11/1 |
| CLP/24/11/2 |
| CLP/24/11 |
| CLP/24/11/3 |
Fellows associated with this archive
| Code | Name | Dates |
| NA2898 | Collins; John (1625 - 1683); mathematician and scientific administrator | 1625 - 1683 |