用JAVA做的一个手机上的计算器，程序的设计非常适合快速的输入数字、输入运算符号进行计算。同时还可以画也2D、3D的函数图像。-JAVA to do with a cell phone calculator, the program design is ideal for quickly entering numbers, enter the operator symbols calculated. At the same time can also be painted also 2D, 3D