可以设置函数系数来画规定的函数图象 支持一次函数 二次函数 三次函数 反比例函数 三角函数-Function coefficients can be set to paint the image functions required to support an inverse function of a quadratic function cubic function trigonometric function

可以建立坐标系，在坐标系中画一次函数和二次函数，可以改变其线型和函数图象的颜色-Coordinate system can be established, and the color of the painting in the coordinate system of primary and secondary functions, you can change the line type and function image