File:Wag-133-1 Envelope Of Ellipses.png

DescriptionWag-133-1 Envelope Of Ellipses.png	English: Figure - Envelope Of Ellipses.
Date	1911 (Uploaded on Commons at 2011-09-25 14:47:40 (UTC)/Originally uploaded at 2011-09-25 05:40:56)
Source	Elements of the Differential and Integral Calculus (revised), The Athenæum Press, Ginn and Company, Boston, U.S.A., 1911. (Originally uploaded on en.wikisource)
Author	William Anthony Granville, Ph.D., LL.D. (Transferred by billinghurst/Originally uploaded by TaffyDownUnder)
Permission (Reusing this file)	Public domainPublic domainfalsefalse The author died in 1943, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 80 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse

wikisource:en:Category:Mathematical diagrams

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• 2011-09-25 05:40:56 | TaffyDownUnder | 71775 | 417×433 | == Summary == {{Information |Description ={{en|1=Figure - Envelope Of Ellipses.}} |Source =Elements of the Differential and Integral Calculus (revised), The Athenæum Press, Ginn and Company, Boston, U.S.A., 1911. |Author =William Anthony Granville, Ph.D., LL.D. |Date =1911 |Permission ={{PD-1923}} |other_versions = }} [[Category:Mathematical diagrams]] [[Category:PD-1923]]

 

This diagram was created with Mathematica by n.