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Fibonaci Clock
Author:
陳隆期
GeoGebra
New Resources
撒针估算面积实验
常见四边形是否是双心四边形
斐波那契螺旋弧线（表格法-可动态调节）
科赫雪花
科氏力 (Coriolis Force)
Discover Resources
二次函數：過任意三點，求函數關係式
Measuring Volume 4
Equal arcs, equal angles, equal chords
同角三角函数的基本关系（正六边形记忆法）
圓錐截痕
Discover Topics
Trigonometric Functions
Vectors 2D (Two-Dimensional)
Algebra
Circle
Line Segment