Haff Ellipsograph

Haff Ellipsograph The coordinates of the centers of the two circles are: (0, -p sin(α)) (p cos(α), 0) The purple point on on the line joining the centers with coordinates (p cos(α), 0) + k p (cos(α), sin(α)) = ((k+1) p cos(α), k p sin(α)) so must lie on the ellipse (x/(k+1))^2 + (y/k)^2 = p^2

 

Michael Borcherds

 
Resource Type
Activity
Tags
ellipsograph 
Target Group (Age)
15 – 18
Language
English (United States)
 
 
GeoGebra version
4.4
Views
3838
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