算法语言

This paper presents an introduction of the mechanism and advantages of Playfair algorism,and provides a complete plan and program of C-language simulative fulfillment,which will make it more vivid and convenient for one to understand this algorism.

介绍了P layfair算法的原理及其优点，给出了用C语言模拟实现P layfair算法的完整思路和程序。为形象的了解此算法提供了最方便的途径

A nerve net controller have been designed on the basis of the hardware design of the AC servo system and system model. The controller include two forward nerve net with three layers . One is designed to identify the AC servo system model and another is to control. The controller use special learning algorithm which to control system at the same time and improve its constringency pace through introducing new MFBP algorithm. The intelligent control algorithmic is programmed using C++ language after the controller have been designed .

在该交流伺服系统硬件设计和系统数学建模的基础上，设计了神经网络自适应控制器，这个控制器包括两个三层的前馈神经网络，一个神经网络用于非线性系统的辨识，另一个神经网络作为控制器，此控制器采取边学习边控制的工作方式，并采用一种新型的MFBP算法实现了控制算法的快速性，在控制器设计完成的基础上，利用C++语言具体实现智能控制算法的编写。

Traditionally,this Textbook,including the pretiminaries,introduces algorithmic conception,three algorithmic formtions such as literal language,framework and progrmming wording,and algorithmic optimum.

介绍了算法的概念和自然语言、框图、程序语句3种算法表现形式，以及算法优化问题。

Firstly, we suggest using context-free language to describe the start code string of MPEG-2 and using minimum-distance error-correcting parser to correct the errors in MPEG-2 start code string. This method hasn't been reported elsewhere. Secondly, side motion estimation rule is proposed for temporal error concealment and based on the rule, many new algorithms are proposed. Among which, the temporal error concealment method utilizing overlapped block motion compensation and side motion estimation rule has exceeded the best performance ever reported.

首先，提出用上下文无关语言描述MPEG-2起始码链，用最小距离误差校正剖析方法进行MPEG-2起始码链的识别与误差校正，该方法国际上尚未有同类报导；其次，提出了用边界运动估计准则进行时域错误掩盖，基于该准则提出了一系列新算法，其中基于重叠块运动补偿和边界运动估计准则的时域错误掩盖算法达到所有已知算法的最佳性能。

Based on the intelligentized algorithms and Matlab,simulation regarding optimization of benzene-toluene flash vaporization process is made. The simulation result shows that the amount of benzene in vapor phase product reaches the maximum on the condition of effective adjustment of temperature,pressure and diffluence coefficient and the production process is optimized.

对基本蚁群算法进行了智能化改进，并运用智能蚁群算法和Matlab语言，对化工生产过程中的实际优化问题，苯-甲苯闪蒸过程进行了优化仿真计算，仿真结果表明，在有效地调整温度、压力及分流系数的条件下，使得汽相产物中苯的产量达到最大，实现了苯-甲苯闪蒸过程的最优化，同时也证明了蚁群算法可以有效地解决化工生产过程中的优化问题。

The theory and the implementation of the genetic algorithms are discussed in detail. The question on how to choose the crossover probability, the mutation probability, the scale of population and the numbers of the generation is discussed. Then, the mathematics model of the optimal design is established. Exerting the finite element of elastic base beam and using FORTRAN to write the GAFORTRAN program. The program includes the common genetic algorithms and the modified genetic algorithms.

详细介绍了遗传算法的理论和实现技术，探讨了交叉概率、变异概率、群体规模、进化代数等变量的选取问题，建立起了基于遗传算法的深基坑支护结构设计的优化模型，结合弹性地基梁有限元法，利用FORTRAN语言编制了GAFORTRAN优化程序，程序中包括普通遗传算法和改进遗传算法。

This article introduced the C # language used to generate a straight line of three commonly used method: numerical differentiation, in line and stipple Bresenham algorithm, and then introduced the mid-point algorithm Circle, the polygon algorithm.

本文主要介绍了用C＃语言生成直线的三个常用算法：数值微分法、中点画线法和Bresenham算法，然后介绍中点画圆算法、多边形的生成算法。

In chapter 4, basing theories and methods of scientific visualization, and artificial neural network BP algorithm, we integrate the Visual C++, OpenGL graphics library and Excel VBA technique to develop the program of artificial neural network and to make the BP algorithm visually, this program works can be divided into four parts: Using C language to develop program about BP algorithm; Using Visual C++, develop the GUI Interface, make input parameter visually; Using OpenGL graphic technique to display the training sample point in three dimension; at last using Excel DDE technique display the error graphic tables in Excel system In chapter 5, on the view of engineering application, we establish new method of surface reconstruction basing artificial neural network, develop interface program between module and commercial CAD/CAM system, meantime deeply discuss some key problems, for example, setting up the base plane, using the API technique, cutting and editing surface boundary, and also discuss the more compliant problem: how to intersect surface, at end we finish the work of translation from our surface reconstruction module to commercial CAD/CAM system, then make reverse engineering system basing artificial neural network more useful.

第四章基于科学计算可视化理论，依据人工神经网络BP算法理论模型，综合Visual C++，OpenGL图形库以及Excel VBA等多项软件开发技术，编制了人工神经网络程序，实现了BP算法的可视化映射。具体工作分为四部分：利用C语言实现人工神经网络BP算法；利用VisualC++的GUI技术开发图形用户界面，实现参数设置可视化；利用OpenGL图形技术进行三维映射，显示学习样本及训练样本点；利用微软电子表格DDE动态数据交换技术，在Excel上动态显示学习误差曲线图。第五章从工程应用的角度出发，提出了一种新的基于人工神经网络算法的曲面裁剪重构方法，完成了曲面重建模块与通用CAD/CAM系统的接口设计工作，对其中的若干关键问题进行了深入讨论，例如基平面设定、API技术的应用、边界裁剪等问题，同时，对曲面计算中较为困难的曲面相交问题也进行的专门探讨，最终完成了曲面重建模块向CAD/CAM系统的数据传输工作，使人工神经网络逆向工程系统趋向实用。

The thesis put forward a arrangement algorithm of examinatorial course based on sequential coloring algorithm which using the knowledge of array and structural linked list in C++ language ,combining the sequential coloring algorithm in graph theory to solve the conflict in arranging the examination course.

论文运用C++语言中的数组和链表结构的相关知识，结合《图论及其算法》中的顺序着色算法，提出了一种基于顺序着色算法的考试课程安排算法。

Using abstract programming language, such as Apia, the specification and derivation of the algorithmic program in six typical trees, graph problem is described. The standard proof and formal derivation is implemented by two above new strategies for developing loop invariants. The algorithm in Apia is transformed into corresponding program in Delphi and C++ by the automated algorithmic transformation system that Partition-and-Recur method provided and correct result is received. These improve reliability and developing efficiency of the kind of complex algorithm.

利用抽象程序设计语言Apla精确描述了6个典型树、图等问题的程序规约和求解算法程序，用上述提出的两种新策略开发了循环不变式，实现了严格的形式化推导或证明，并用PAR方法提供的算法程序自动转换系统将得到的Apla算法程序转换成对应的Delphi和C~程序，均得到了正确的运行结果，大幅度地提高了这类复杂算法程序的可靠性和开发效率。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。