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橢圓規Ellipsograph (Trammel of Archimedes)
Author:
宋政蒲
Topic:
Constructions
,
Ellipse
GeoGebra
New Resources
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
長方體平面投影 (Codex版)
直角坐標平面上的旋轉變換
近似值：有效數字
Discover Resources
旋轉矩陣
曲線與投影
圓錐截痕模型
纏繞圖 20180317四箴國中研習
梯形的高
我的第一个GGB绘本
Discover Topics
Logarithm
Trapezoid
Pyramid
Orthocenter
Cosine