Rolling Coin 滾動的硬幣
Explore the locus of P for various ratios of diameters. The case of 1:2 is particularly interesting.
GeoGebra 互動數學教室 [url]http://www.geogebra.hk[/url]
String Art Based on Bézier Curves
Bezier’s curve was devised by Dr. Pierre Bezier (1910-1999), a French engineer who worked for an automaker.[br]Bezier devised a way of describing a curve exactly at every point. He did this by circumscribing a curve inside a[br]cube, and created a "best fit" curve that was used by manufacturers of his day. Currently, his work on curves has[br]aided in modern computer graphics.[br][br]Use the slider to create a "best fit"![br]Use the points to change the look of the square!