编写一个Java应用程序，在其中编写一个类，该类封装了一元二次方程共有的属性和功能，即该类有刻画方程系数的3个成员变量以及计算实根的方法。并给出计算实根的过程-Write a Java application, in which the preparation of a class that encapsulates the properties of a total of one dollar quadratic equations and functions, that is, such a

使用NetBean开发的java简易复数计算器，支持复数的加法、减法、乘法、除法、根、模、自然对数、实幂指数、虚幂指数、正弦、余弦、正切的运算。设计了自己的复数类-NetBeans development of the use of the plural simple java calculator, support plural addition, subtraction, multiplication, division, roots, mold, natural logarithm, it