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與園內切且外切的圓心軌跡方程式
Author:
SUN YUNG CHANG
與圓內切外切的圓心軌跡方程式
GeoGebra
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漂亮的摇摆曲线
多邊形的面積
百分數及其應用
圓周公式的應用
祖冲之的期望：内棋与外棋
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畢氏定理的證明
Direct and Inverse Variation 正變與反變
可調包絡圓
Problem1:(md+me+mf)/(ad+be+cf)=a
圓心在同一直線上且相切的圓(半徑可改變)
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Circle
Similar Triangles
Rhombus
Stochastic Process or Random Process
Geometric Distribution