No CrossRef data available.
Article contents
Homogeneous Line Coordinates
Published online by Cambridge University Press: 03 November 2016
Extract
p, q, r are lengths of perpendiculars from A, B, C on line, and have same or opposite signs according as A, B, C are on same or opposite sides of the line.
- Type
- Research Article
- Information
- Copyright
- Copyright © Mathematical Association 1929
References
page 292 note * Cf. C. A. Scott, Modern Analytical Geometry, p. 16.
page 295 note * The book referred to is Pratique de la Géométrie sur le papier et sur le terrain, par Sebastien Leclerc, Paris, 1669. It is the subject of an article by J. H. Graf in Abhandlungen zur Geschichte der Mathematik, Heft 9,1899, pp. 115-22. There were many later editions Paris, 1682, 1700, 1716,1735,1744; translated into Latin, Amsterdam, 1692; into English, under the title Magnum in Parvo: or, the Practice of Geometry, by Robert Pricke, London, 1672 (no mention of Leclerc), later editions, with attribution to Leclerc, 1727 1742; Italian translation, Rome 1761. [Per F. Puryer White.]