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convex lens
作者：
Lau Kin Sun
GeoGebra
最新資源
Pitfalls of Disk/Washer Method
Using Experimental Probability to Estimate π - Monte Carlo Method
Locus Related to Descartes' Folium
Exploring GeoGebra for the First Time
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Sum of Angles of a Triangle is 180°
Pi Approximation - TL
heptagon-R&C
work for the circum center of triangle A=(2,13), B=(16,11)
Taco Cart Problem
Tool 10 petals Marta
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3D 向量（三維）
Linear Equations