generate random passwords, user

一款电场线的教学软件可以自定义电荷多少，大小，位置等-new electric line of educational software can define the number of charge, size, location, etc.

隐马尔夫模型的源代码-implicit successor model of source code

如何修改MFC AppWizard向导生成的框架程序的外观和大小，修改图标、光标、背景的三种方法。如何增加和删除工具栏按钮，如何给应用程序增加工具栏，如何显示和隐藏工具栏。定制状态栏，在状态栏中添加时钟显示，CTime类及其用法。在状态栏中添加进度条（主窗口产生后立即产生进度条的巧妙思想，不能在OnCreate函数中直接处理，要用到自定义消息的方法）。鼠标坐标显示，在CView中获取状态栏对象的几种方式。如何为应用程序添加启动画面。 -How to modify the MFC AppWizard Wizard to generate the appearance of the framework of procedures and size, modify the icon, cursor, background three methods. How to add and remove toolbar buttons, how to increase the application toolbar, how to show and hide the toolbar. Custom status bar, add in the status bar clock display, CTime class and its usage. In the status bar to add the progress bar (the main window immediately after the progress bar the ingenious ideas, in the OnCreate function should not directly deal with, to use a custom message to the method). Mouse coordinates shows that access to the status bar in the CView object in several ways. How to add a splash screen applications.

指针用法

资源描述随着物联网的兴起，室内无线定位技术得到广泛应用。其中基于RFID 的定位 技术由于具备系统可靠性高，在低成本预算下能取得较高定位精度等优点，因此 成为学者们的研究热点。现阶段基于RFID 技术的二维定位算法已比较成熟，因此 本论文重点研究RFID 室内三维定位技术。本文首先讲解RFID 室内定位的相关基 础理论及典型算法，然后分析现有算法的不足之处，从中确定新算法改进方向。

两个大大整数（位数相同）相乘，比如50多位。

Runge-Kutta-Verner方法求积分，包括cpp源码-Runge-Kutta-Verner method of quadrature, including the cpp source code

利用辅助指针 基本思想：在遍历结点过程中，设置辅助指针，用于记录先前遍历的结点。这样依次编译的过程中只需修改其后继结点的next域即可

大致想法就是对于一个数abcdefg。。。比他小或等于的有abcdefg 个，其中不包括9的有（大致就是转成9进制， 如果不存在9的话转出来的大小就是小于等于abcdefg有几个十进制的数）a*9^n + b * 9 ^(n-1)....这样。但对于在高位出现过9了，那么低位的数字也就没有意义了，计算的话反而会重复，就在高位的下一位不+就好了 所以比abcdefg小的9的个数就是abcdefg-a*9^n + b * 9 ^(n-1)。。。这样多个。 一个高精度*纯洁的数字 + 高精度的加减操作就好了（因为确认了b >= a）。。 很奇怪大神们的思想都是一开始打表10^n - 9 ^ n什么的这样。。 渣渣的思路一开始就是一级一级往上乘果然跟大神们不是一个思维方式

应用背景This application is to focus on the numerical methods in Computational Fluid Mechanics, dealing with aeronautics, hydraulics, heat and mass transfer etc. We konw fluids have the ability to transport matter and its propertities as well as transmit force, therefore fluid mechanics is a subject that is particularly open to cross fertilization with other sciences and disciplines of engineering. The subject of fluid mechanics will be highly relevant in domains such as chemical,metallurgical, biological and ecological engineering.关键技术 SIMPLE (Semi-Implicit Method for Pressure Linked Equations) algrithm is the principal numerical method to numerical simulate incompressible fluid flow, it can remove the difficults of fake pressure disturbance and neglecting specific pressure equation for incompressible fluid flow successful. The main thoughts and steps of SIMPLE algorithm are given in this application. The single-phase loc