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向量的隐圆3-外接圆(1)
Author:
吕胜
GeoGebra
New Resources
直線的斜率：水平變化 & 鉛垂變化
第八周作业3
折扣
祖冲之的期望：内棋与外棋
双心四边形
Discover Resources
雜類(Miscellaneous)
量度的誤差 Errors in Measurement
對稱方波
No.5
"拈" 類遊戲之一-搶21遊戲 The 21 game
Discover Topics
Cone
Polygons
Sine
Constructions
Standard Deviation