可易图形

We can make use of the powerful calculate function and convenient graph protract function of MATLAB to make the abstract mathematic theory more understandable and have a better teaching effect.

利用MATLAB强大的计算仿真功能和方便易用的图形绘制功能可以将抽象的数学和技术理论以易于理解的可视化形式展示给学生，起到更好的教学效果。

We designed a JSD-based graphical operational specification language-NUJSDL and a supporting systemNUJSDS which supports the use of the method in the practice of software development. NDJSDL has the characteristics of understandable, analysable and maintainable etc. The results of the different phases in JSD development procedures are described by the various mechanisms in NUJSDL separately.

为了支持开发者将其应用到软件开发实践中，我们设计了一种基于JSD方法的图形化的操作式规格说明语言NUJSDL，并开发了其支撑系统NUJSDS，NUJSDL语言具有易理解、可分析和可维护等特性，它提供了多种机制分别刻划JSD开发过程中各阶段的结果，并且用它书写的规格说明还可以作为待开发系统的一个原型。

We refer to problems in NS-2 and the significance of developing INDRE.4. The Integrated Network Design and Research Environment by Simulation, INDRE, is proposed.

在INDRE的设计与实现工作中，提出INDRE的设计思想：建立一个开放式的、模块化的、面向对象的、可视化交互的网络设计和研究综合平台，为网络研究和设计人员提供一个直观的、简单的、灵活的、易操作的图形化建模与分析界面。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。