数学函数作图器,拥有三角函数，指数函数，复数函数，一次函数，对数函数等功能。-Math Constructions, with trigonometry, the index function, complex function, a function of several functions, such as functional.

实现了一次函数 二次函数 流水灯 等功能(The functions of two functions, such as primary function, water lamp, etc., are realized.)