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file description this file is about java msging sms

数据压缩的一些基本概念-data compression some of the basic concepts

这是一个DEM和等高线图象，可以给大家练习用-This is a DEM and contour images, we can use practice

upsd3200开发应用说明以及PSOC的应用-upsd3200 development and application notes, and the application of PSOC

Mathimatics-Numerical algorithms -Mathimatics-Numerical algorithms

* 用改进的欧拉方法求解初值问题，其中一阶微分方程未y =f(x,y) * 初始条件为x=x[0]时,y＝y[0]. * 输入: f--函数f(x,y)的指针 * x--自变量离散值数组(其中x[0]为初始条件) * y--对应于自变量离散值的函数值数组(其中y[0]为初始条件) * h--计算步长 * n--步数 * 输出: x为说求解的自变量离散值数组 * y为所求解对应于自变量离散值的函数值数组 -* Improved Euler method to solve initial value problems, not an order differential equation y = f (x, y)* initial conditions for x = x [0], y = y [0].* Input : f-- function f (x, y)* x pointer-- from the array variable discrete values (x [0] for the initial conditions)* y-- corresponding to the variable discrete value of the function of the array (y [0] for the initial conditions)* h-- calculated step* n-- steps* output : Solving for x that the variable array* discrete values by solving y variables corresponding to the value of the discrete function arrays

是一个关于医学方面的很好的资料,尤其对于刚进入读研的人有知道作用-is one of the medical aspects of good information, especially for entering the Graduate know who are role

时钟芯片的使用手册,功能描述,技术指标,引脚的接法,-Clock chip user

帮助大家熟悉DOS，并且熟悉批处理命令，是一本dos命令大全-Help everyone familiar with DOS, and familiar with the batch command is a dos command Guinness

SHA加密算法是目前广为应用的重要加密方法之一。而SHA-1 生成 160 位的消息摘要，虽然执行更慢，却被认为更安全。明文消息的最大长度可达到 264 位。下面是网络上流传的SHA算法，我们自己调试了一下，已经通过。现把主函数和算法函数贴出来。-SHA encryption algorithm is an important widely used encryption methods. And SHA-1 generates the message digest 160, although more slowly, but think more secure. Explicit messages the maximum length could reach 264. The following is a network spread SHA algorithm, debugging a bit of our own has passed. Are the main functions and algorithms function posted.