Finally we simulate and calculate a definite transportation network of nanjing by matured math tool - matlab joining theory of chart and network with analysis and conclusion . experiences show that efficiency theory of swn can aid the building and evaluation of real network well 然后结合运筹学中图论和网络的理论方法，利用成熟的数学计算语言matlab ，对一具体的南京市公交网络图进行了仿真和计算，并对此给出分析和结论。
In analyzing the flow field , the limited difference method of partial differential equation is employed , and the differential form of the flows in the valve is derived . ~ while in the calculation of the limited difference method , it makes kinetic parameters of ~ t " , , ii , v and pressure of p separated 为了数值模拟方便，本文简化溢流阀流动模型，以二维不可压缩粘性流动的navier - stokes方程作为流动控制方程，采用计算功能非常强大的matlab作为计算语言，运用有限差分法对流场内流动进行数值分析。
Grid systems can be classified into computational grids and data grids . computational grids involve sharing heterogeneous resources ( based on different platforms , hardware / software architectures , and computer languages ) , located in different places belonging to different administrative domains over a network using open standards . in short , it involves virtualizing computing resources 网格系统分为计算网格和数据网格,计算网格包括共享基于不同平台、硬软件体系结构和计算语言的异构系统,这些异构系统都是分布于互联网中的不同物理位置的属于不同机构和管理域的,一句话,计算网格以开放标准提供虚拟计算资源。
Moreover terminal system is empoldered mainly by vc + + 6 . 0 combining with matlab . two - and three - dimensional graphics of bistatic doppler radar system can be showed by using matlab ' s graphics function . the vertical velocity is going to be estimated by using a variational analysis method 另外，在模拟及重建风场过程中，进行系统开发时，使用了vc + + 6 . 0为主要编程工具，结合工程计算语言matlab ，运用它的作图功能，来实现双基地气象雷达系统的二维和三维图形显示。
