Hostname: page-component-745bb68f8f-cphqk Total loading time: 0 Render date: 2025-02-06T01:48:33.516Z Has data issue: false hasContentIssue false
  • English
  • Français

Direction-Cosines of the Axes of the Conicoid

Published online by Cambridge University Press:  31 October 2008

Lawrence Crawford
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

ax2 + by2 + cz2 + 2fyz + 2gzx + 2hxy = 1.

In Mathematical Notes, No. 20 (April 1916), there is a note on the above; I add a form of the equations of these axes which I have not seen in a text-book, and which is perhaps worth recording.

Type
Research Article
Information
Edinburgh Mathematical Notes , Volume 21 , December 1916 , pp. 242 - 243
Copyright
Copyright © Edinburgh Mathematical Society 1916