Moss Egg by Robert Dixon
Here is a GeoGebra version of a Moss Egg, from a book by Dixon, Robert, called Mathographics. Dover Edition, Mineola N.Y., 1987.[br]There's an online source by Freyja Hreinsdóttir called Euclidean Eggs, University of Iceland, Lifelong Learning Programme, at the site[br][url]http://www.dm.unipi.it/~georgiev/club/progects/DYNAMAT/PUBLIC/D9_EBook/PDF_English/IS_EN_01_B_Euclidean_Eggs.pdf[/url]
Unit Circle - exact values
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Investigate the exact trigonometric values by dragging the green dot around the unit circle. |
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Do you observe any patters with the sine and cosine functions relating to the coordinates? |