LU matrix decomposition, this decomposition can solve the equations

这是一个用VC编译的小游戏程序，希望各位同学老师多多指导-This is a translation of VC small Games, I hope many teachers guide students

用vb编写的对文本文件的操作程序，包含文本文件的读写，切割。-With vb text file written operating procedures, including reading and writing text files, cutting.

*** *维吉利亚密码C语言版*************简单实用-*******维吉利亚password************* C language version of simple and practical

从数据库里面取数据,直接生成XML文件 ,可以自定义查询表而导出数据到XML文件里面-Check inside data from the database directly to generate XML documents, can customize the look-up table and to export data to XML files inside

弹球游戏，java原程序，实现弹球的需求，对弹球开发的朋友有点帮助-marble game， java code

推箱子游戏是一个在turboC2环境下编写的小游戏，该类游戏版本很多，希望不会雷同-magazines is a game in turboC2 environment prepared by the small games, many versions of such games, hope not identical. .

一款仿真软件的使用说明以及具体的操作步骤-A simulation software instructions as well as specific steps. . . .

1.本文对一种高效的升压式PWM 变换电路作了分析研究 对开关状态的切换效率高 采用双零软开关工作，大大降低了开关损耗, 提 高了电路的转换效率. 2.该电路在高频的开关电源、逆变器等电力电子电路上有很大的实用价值, 可以提高电路的转换效率. -1. In this paper, an efficient step-up PWM conversion circuit analysis study on the switch to switch the state of high efficiency soft-switching double-zero work, greatly reduces switching losses, improve the conversion efficiency of the circuit .2. The circuit in high-frequency switching power supplies, inverters and other power electronic circuits have great practical value, can improve the circuit

/* 描述： 1.自定义分数类fraction，使用该类可以完成分数的输入、分数的加、减、乘、除二目运算和一目减运算、分数的约分操作、分数的倒数运算、对两个分数进行六种比较运算、以及对分数的输出等操作。 2.尽量用运算符重载函数。如，可重载+、-、*、/、>、>=、 =,< ,< =,==,!=, in order to achieve a variety of computing scores. And achieve scores and mixed integer operations. 3. As far as possible to consider application performance.

主要是关于系统还原和备份的，讲解非常详细，并有图说明．对电脑爱好者有很大的帮助的．-mainly on the reduction and backup systems, on the very detailed, and a diagram. Computer enthusiasts have great help.