User talk:Eviox

ellipse

Hello Dino, could you tell me how do you drow the gif picture in Ellipse? The link is: http://en.wikipedia.org/wiki/File:Ellipse_as_hypotrochoid.gif What software do you use? Is it possible use MATLAB to drow such picture? Thank you! —Preceding unsigned comment added by Eviox (talk • contribs) 15:54, 4 February 2009 (UTC)[reply]

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I used an open-source math package called Sage -- look a bit lower on the page. Links to source code.

Thank you very much!