Application和Applet两个版本的程序，实现基本数学运算、函数等功能：加、减、乘、除、阶乘、正弦、余弦和指数运算。对Application运用继承JFrame设计，类的设计构造方法利用-Application and Applet version of the program, basic math, functions and other functions: addition, subtraction, multiplication, division, factorial, sine, cosine, and exponential operations. Application design, use of inheritance JFrame class constructor use