关于fft的一个基本AVR程序，与利于初学者

数字图像放大缩小及旋转计算组间方差和组内方差的时候调用了一个函数专门求阈值，可能这里的计算还是有一点问题。而且在我的函数里，要256次调用这个函数，又因为计算机是按字节处理数据的，因此写图像数据的时候要用每8个写到一个数组中，然后通过计算得到字节类型的值，这些都使得我的算法效率比较低，最后一个问题，我觉得如果使用位运算会快一些，但是前面的问题还没有想到比较好的解决方法。-Digital Image zoom and rotation calculation of variances and group between the two groups when the variance of a function call seeking specific threshold, the calculation may be here, or there was a problem. And in my function, it is necessary 256 calls to this function, and also because the computer is processing data in bytes, and therefore the time to write image data to use for every 8 write an array, and then calculated byte type values, which are made to my algorithm" s efficiency is relatively low, the last issue, I think that if you use bit computing will be faster, but the previous issues have not yet thought of a better solution.

软件工程开发文档的模板 包括《可行性报告》、《开发计划》、《需求规格说明》等全套一十三个模板，基本覆盖软件开发流程所需文档文件。-Software Engineering Development document templates, including

微软OCS2007的配置、使用说明书,对于OCS2007的安装与配置帮助很大-Microsoft OCS2007 configuration, use the manual for installation and configuration OCS2007 very helpful

Take this material and refer. very useful to study-Take this material and refer. very useful to study...

这是一个复杂的完整程序。 它是一个虚拟的图形和音乐比赛的作品集合。而是这些作品的包装。 在其原始格式 ZX 光谱中播放音乐。 该程序写在 PureBasic 和评论得很好。

基于CD4046构成的PLL及应用 CD4046构成的PLL在通信、频率处理、自动控制等技术领域中应用较为广泛，正确理解CD4046对掌握电路基本组成、原理及应用。对处理实际工程问题有很大帮助-based on the PLL constitute CD4046 and CD4046 constitute the application of the PLL communications, frequency processing, automatic control technology has been widely applied. CD4046 correct understanding of the basic circuit master composition, theory and application. Dealing with practical engineering problems will be of great help

概要设计例子,请认真学习,全都有用!-Summary of design examples, please carefully study all useful!

注释：用VB开发的高质量进销存管理系统源码，流程简单明了，效果不错，值得一看。-Notes : VB development of high-quality source code inventory management system, is simple to understand, the effect is true overseas.

一个用PHP+MYSQL实现的物流管理系统，支持车辆管理，人员管理，开单录入查询等。。纯源码，内有说明

PIC单片机上的键盘扫描-PIC Singlechip keyboard scanning