一类二层多目标规划的解法

在上层决策变量作为参数的情况下 ,将上层为单目标 ,下层为线性多目标的两层优化问题 ,转化为含参变量的有效集上的单目标问题 ,给出了一个相应的算法     

A quadratic programming method for optimal degree reduction of Bezier curves with G^1-continuity

This paper presents a quadratic programming method for optimal multi-degree reduction of Bézier curves with G1-continuity. The L2 and l2 measures of distances between the two curves are used as the objective functions. The two additional parameters, available from the coincidence of the oriented tangents, are constrained to be positive so as to satisfy the solvability condition. Finally, degree reduction is changed to solve a quadratic problem of two parameters with linear constraints. Applica     

基金增值模型

利用线性规划解决比较复杂的基金增值问题,给出了一种比较简单的算法,得出了最优的基金增值方法。该法算法简单、实用性强、是单位和家庭理财的较理想选择。     

以杆长平方和为目标函数进行形状优化的二次规划方法

给出了桁架结构形状优化的一种分层方法，即分为截面层优化和节点层优化．在节点层，不以结构的重量作为目标函数，而以杆长平方和作为目标函数，形成了标准的二次规划，采用Ｌｅｍｋｅ方法即可求解．     

C++中CONST的用法

const是C 的一个重要的关键词,其作用是为了限制对一个变量的操作,本文通过实例对const的用法进行了详细的分析,对于C 的编程与教学会有一定的帮助。     

数控机床加工非圆曲线的编程法研究

介绍用数控机床加工非圆曲线的一种编程方法。此方法将变量应用于程序编制中即变量编程法。同其它手工编程方法相比，该方法具有编程简单，加工精度高等优点。     

Algorithmics and programming in the school mathematics curriculum: support is waning - is there still a case to be made?

The contribution of programming in the learning of school mathematics has been demonstrated in numerous project and research settings. However, it would appear that this activity has failed to permeate the system on any large and systemic scale.I suggest here that one reason for the current situation is that the exciting developments have not themselves been a required component embedded in a major curriculum theme. Further, the position that the programming environments themselves, e.g., Logo microworlds, would become the school mathematics curriculum has clearly failed to gain the support of the educational system. However, discrete mathematics and algorithmics, a strand within discrete mathematics, provides a natural home for programming. This in turn supports the use of a programming language in mathematical contexts for which pupil designed algorithms can be used to explore concepts and relationships.     

基于USB技术的CAN总线接口卡的研究与开发

论述了USB和CAN总线的互连技术以及实现方法,开发了USB?CAN总线接口卡。系统的硬件主要由Philips公司的单片机AT89S52、CAN控制芯片SJA1000和USB控制芯片PDIUSBD12组成。固件程序采用KEILC51标准C编译器开发。本设计综合体现了软件和硬件的功能要求,可以推广到其它总线的应用场合。     

A taste of functional programming — 2

Functional programming has its roots in Alonzo Church’s lambda calculus. In the first part¹ of this article, we explored some basic notions of functional programming using the language Haskell. We now examine some more advanced concepts, including polymorphism, infinite data types and computations, and user-defined data types. Madhavan Mukund has been on the Computer Science faculty at Chennai Mathematical Institute since 1992, where he is currently Professor. His research interests are primarily in formal methods for specifying and verifying computing systems. He is the Secretary of the Indian Association for Research in Computing Science (IARCS) and the National Coordinator of the Indian Computing Olympiad.     

虚拟演播室应用于教育电视制作的前景

创意无限的虚拟演播室是一项崭新的技术，它在电视节目制作中具有传统演播室无法达到的功能和优势，应用在教育电视节目制作中将会有广阔的前景。