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P2 時距計算機
Author:
Chan Pui Chuen
GeoGebra
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百分數及其應用
盈利與虧蝕
斐波那契螺旋弧线（表格法）
第八周作业
双心四边形
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Clock24hour
圓與弦2
不規則鑲嵌無背景 楊靜宜
卡瓦列里原理
整數點
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Differential Calculus
Sine
Angles
Trapezoid
Cosine