Feliz/Happy 2014的副本

作者:xiaodandan, Ester Alonso

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新资源

Angle Addition Postulate (V2) - Integer Solutions
Squaring a Rectangle (PST Version)
Mandelbrot 2
Mandelbrot
Right Triangle Inscribed in a Semicircle

发现资源

Natural numbers multiplikation
integers operations
complete the square 2
Nine-Point Circle of an Orthocentric System
grimme hus

发现主题

线性函数
棱锥
对称
三角函数
三角函数