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Addition of 2 Directed Numbers
Author:
Chan Man Fai
Addition of 2 directed numbers
GeoGebra
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【案例】2018年全国1卷理科12题
画直线等分三角形的面积
垂直線的斜率
平行線的斜率
直線的斜率：水平變化 & 鉛垂變化
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圓,圓柱,圓錐,球
推移矩陣（y 方向）
Dodecahedron
球體
学习 GeoGebra 图形计算器
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LCM and GCD
Conditional Probability
Geometric Transformations
Angles
Sine