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圖形3
Author:
hingchan
,
felixchow
GeoGebra
New Resources
Rotating Points (Optical Illusion)
History of Maths
Ellipse as Envelope - Correspondence Method
Ellipse, Hyperbola and Circle as Envelopes
"Compressed" Astroid as Envelope
Discover Resources
linear functions
PreAlg2.1Dilation
Circumscribed Triangle
Understanding Mandelbrot Set
Prove like this 2
Discover Topics
Interest Calculation
Tangent Function
Polygons
Ellipse
Hyperbola