The advantages in making the calculation program by using Mathematica are introduced, such as powerful symbolic operation, intuitive expression form, flexible function of list, rich built-in mathematical and physical functions, and excellent visualization.
利用 Mathematica的独特优点 ,强大的数学公式推导、直观的表达形式、灵活的表功能、丰富的数学物理内嵌函数及良好的图形可视化功能等 ,不但高效地完成层状压电介质空间问题的理论推导 ,而且编制了短小精悍、可读性强和计算结果直接可视化的程序。
Then,an ordinal list of entity elements of a closing outline is created.
根据冲裁件工件图的各轮廓自封闭的特点以单链连接的形式存储图形数据，同时建立构成封闭轮廓的所有实体元素的有向顺序排序表。
The acquire and requested display of the actived data in the PB multi table;
PB中多表动态数据的获取及按要求显示
The Advantage of the Form Class of the Maintenance Table and Its Designing Points;
维护表的表单类的优势及设计要点