Polar vs Rectangular
http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/PolrectMD.html (many bugs in html see the video,it is better)
(Some bugs ,no bug on pC)
[url=http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/PolrectMD.html]http://dmentrard.free.fr/GEOGEBRA/Maths/Export5/PolrectMD.html[/url]