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楕円の交点の軌跡
Author:
依田賢
GeoGebra
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sine-wave
正１７角形 作図 regular 17-gon
二次曲線と離心率
対数螺旋
standingwave-reflection
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Ex_122
ｗ＝（ｃｚ＋１）／（ｚ＋ｃ）
関数の変域
円と三角形
放物線と線分の共有点
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Terms
Tree Diagrams
Angles
Linear Programming or Linear Optimization
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