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KochWithTool
Author:
Peng-Jen Lai 賴鵬仁
GeoGebra
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双心四边形
百分數及其應用
斐波那契螺旋弧线（表格法）
正方形雪花图案
第八周作业2
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平面幾何
構造切線 / construct the tangent line
Locus: Fixed Distance From Line Segment
ycmc P5 Math lesson 1-2
麻之葉
Discover Topics
Mathematics
Arithmetic
Integers
Parametric Curves
Multiplication