File:Dandelin spheres.svg

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Deutsch: de:Dandelinsche Kugel an einer Ellipse
English: Directrix of an ellipse from the Dandelin spheres; Conic Section. PF+PF'=const.
Español: Directriz de una elipse a partir de las esferas de Dandelin
Русский: Директрисы Df1 и Df2 и фокусы f1 и f2 эллипса, как конического сечения, разделяющего шары Данделена.
Date vectorization 24 July 2016 (upload date)
Source Own work based on: File:Dandelinsche Kugeln.PNG
Author Original: Honina; Vectorization: User:Perhelion
Other versions Category:Dandelin spheres
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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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Date/TimeThumbnailDimensionsUserComment
current12:36, 25 July 2016Thumbnail for version as of 12:36, 25 July 2016330 × 397 (6 KB)Perhelion (talk | contribs)cosmetic
12:14, 25 July 2016Thumbnail for version as of 12:14, 25 July 2016330 × 397 (6 KB)Perhelion (talk | contribs)replace font serif → sans-serif
11:56, 25 July 2016Thumbnail for version as of 11:56, 25 July 2016330 × 397 (6 KB)Perhelion (talk | contribs)tiny improvement
11:11, 25 July 2016Thumbnail for version as of 11:11, 25 July 2016330 × 397 (6 KB)Perhelion (talk | contribs)add dimension
10:48, 25 July 2016Thumbnail for version as of 10:48, 25 July 2016512 × 616 (6 KB)Perhelion (talk | contribs)+ en, uk, fr, it
20:52, 24 July 2016Thumbnail for version as of 20:52, 24 July 2016512 × 616 (5 KB)Perhelion (talk | contribs)improved
18:08, 24 July 2016Thumbnail for version as of 18:08, 24 July 2016512 × 616 (4 KB)Perhelion (talk | contribs)small text position fix // Editing SVG source code using User:Rillke/SVGedit.js; upload handled by User:Rillke/MwJSBot.js
18:04, 24 July 2016Thumbnail for version as of 18:04, 24 July 2016512 × 616 (4 KB)Perhelion (talk | contribs)=={{int:filedesc}}== {{Information |description= {{de|1=de:Dandelinsche Kugel an einer Ellipse}} {{en|1=Directrix of an ellipse from the Dandelin spheres; Conic Section. PF+PF'=const.}} {{es|1=Directriz de una elipse a par...

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