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ERIC Number: EJ877235
Record Type: Journal
Publication Date: 2010-Mar
Pages: 5
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0746-8342
The Locus of the Focus of a Rolling Parabola
Agarwal, Anurag; Marengo, James
College Mathematics Journal, v41 n2 p129-133 Mar 2010
The catenary is usually introduced as the shape assumed by a hanging flexible cable. This is a "physical" description of a catenary. In this article we give a "geometrical" description of a catenary. Specifically we show that the catenary is the locus of the focus of a certain parabola as it rolls on the x-axis.
Mathematical Association of America. 1529 Eighteenth Street NW, Washington, DC 20036. Tel: 800-741-9415; Tel: 202-387-5200; Fax: 202-387-1208; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A