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Spiral Approximation
作者:
John Golden
Draw the segment until it hits the next arm. Draw the next segment at right angle to that spiral arm. We're using this construction to measure the segments and see if there's a pattern to their lengths.
GeoGebra
新资源
Construct a Square
Rotating Points (Optical Illusion)
Introduction
Pelecoid
Ellipse as Envelope - Correspondence Method
发现资源
Moving Shadow
Refleksi Terhadap Sumbu X dan Sumbu Y
Untitled
Reflections Demo for Pre-Algebra
Concurrency
发现主题
上和与下和或黎曼和
位似
椭圆
定积分
任意三角形