2.Mathematica: This is a scientific computing software, which well combines the number and symbol computing engine, graphics system, programming language, text system and advanced connection with other applications. Many functions are in the leading position in the world in the corresponding fields. As of 2009, it is also one of the most widely used mathematical software.
3.Maple: It is one of the most commonly used mathematical and engineering calculation softwares in the world at present, and enjoys a high reputation in the fields of mathematics and science, and is known as "mathematician's software".