File:Evolute1.gif

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DescriptionEvolute1.gif	English: An animation of the construction of an evolute of an ellipse : an astroid. Red curve = ellipse. Black dot is a point of the ellipse. In every point of the ellipse normal line ( blue) is drawn.
Date	3 January 2008, 21:24
Source	http://en.wikipedia.org/wiki/File:Evolute1.gif
Author	Sam Derbyshire
Permission (Reusing this file)	This file is licensed under the Creative Commons Attribution-Share Alike 1.0 Generic license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you alter, transform, or build upon this work, you must distribute the resulting work under the same license as the original. CC BY-SA 1.0 truetrue
Other versions	Evolute (red curve = an astroid) of an ellipse ( blue curve)

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	11:31, 25 June 2010		465 × 465 (1.17 MB)	wikimediacommons>JRGomà	{{Information \|Description=An animation of the construction of an evolute of an ellipse : an astroid. \|Source=http://en.wikipedia.org/wiki/File:Evolute1.gif \|Date=21:24, 3 January 2008 \|Author=Sam Derbyshire \|Permission={{cc-by-sa}} \|other_versions= }} [[

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