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ROTATION 1A
Author:
lo yat lung
GeoGebra
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第八周作业2
第八周作业1
科赫雪花
平行線的判定
直線的斜率：水平變化 & 鉛垂變化
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簡易統計
normal vector
擴分、約分及比較大小
vectore_four stack pile
畢氏定理拼圖007(8片)
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Ellipse
Multiplication
Complex Numbers
Surface
Cube