Hostname: page-component-745bb68f8f-b6zl4 Total loading time: 0 Render date: 2025-02-06T02:09:56.226Z Has data issue: false hasContentIssue false
  • English
  • Français

The Latus Rectum of the Parabola: (ax + by)2 + 2gx + 2fy + c = 0

Published online by Cambridge University Press:  31 October 2008

Robert J. T. Bell
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.

If a circle has double contact with a parabola, the points of contact being P and P′, its centre, G, is the point of intersection of the axis with the normals at P and P′, and the perpendicular from G to PP′ is the subnormal GN, which is half the latus rectum.

Type
Research Article
Information
Edinburgh Mathematical Notes , Volume 27 , January 1932 , pp. iv
Copyright
Copyright © Edinburgh Mathematical Society 1932