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Jfr a me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,