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卡特蘭數 (Catalan Number)
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
拼砌四邊形
四邉形 (四年級) 教師版
判斷球體
算柱 (兩位數)
【案例】2018年全国1卷理科12题
Discover Resources
二次函數的圖形
垂心與垂線
HOMEWORK
碎形六邊形的副本
硬幣換算小遊戲
Discover Topics
Symmetry
Ratios
Matrices
Rhombus
Exponential Functions