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交點的極限
Author:
羅驥韡 (Pegasus Roe)
藍色的圓:圓心 (1, 0),半徑 1 紅色的圓:圓心 (0, 0),半徑 OP 問題:當 P 趨近於原點時,R 趨近於哪裡?(請試著將 P 拉向原點)
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球體建築師
判斷球體
Nested spiral octagon
四邊形的特性
畫出對稱圖形
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兩條數線比較(雙單位)
IMO2015C
空間兩直線關係
可控坐标系
Copia de Fractal Spirograph (Fractal Roulette)
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Trigonometry
Confidence Interval
Straight Lines
Rational Numbers
Calculus