说明：  Mathematica是一款科学计算软件，很好地结合了数值和符号计算引擎、图形系统、编程语言、文本系统、和与其他应用程序的高级连接。很多功能在相应领域内处于世界领先地位，它也是使用最广泛的数学软件之一
(Mathematica is a scientific computing software, a good combination of numerical and symbolic computing engine, graphics systems, programming languages, text systems, and other applications with the advanced connection. A lot of functions in the corresponding field in the world s leading position, it is also one of the most widely used mathematical software)