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多邊形面積(分割法)
Author:
lkkbmaths teachers 檔案儲存用
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两个正四面体
水位問題
程自顺101
程自顺100
其它
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總結
盾牌(小動畫)
Travelling Waves
a06~x^(2)/4+y^(2)-z^(4)/4=t
偽五邊形
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Reflection or Reflexion
Functions
Straight Lines
Geometric Transformations
Planes
