Search - set of complex number

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[Software Engineering] fftplot DL : 0: FFT，即为快速傅氏变换，是离散傅氏变换的快速算法，它是根据离散傅氏变换的奇、偶、虚、实等特性，对离散傅立叶变换的算法进行改进获得的。它对傅氏变换的理论并没有新的发现，但是对于在计算机系统或者说数字系统中应用离散傅立叶变换，可以说是进了一大步。设x(n)为N项的复数序列，由DFT变换，任一X（m）的计算都需要N次复数乘法和N-1次复数加法，而一次复数乘法等于四次实数乘法和两次实数加法， -FFT, fast Fourier transform which is a discrete fast Fourier transform algorithm, which is the discrete Fourier transform of the odd and even, true, false, such as characteristics of the Discrete Fourier Transform algorithm obtained. Fourier transform theory it is not a new discovery, but in the computer system or the application of digital systems Discrete Fourier Transform, can be said to be a big step. Set x (n) for N sequences of the plural, by the DFT transform, either X (m) requires the calculation of complex multiplication and N times N-1 times the plural adder, and a complex multiplication is equivalent to four times the number of multiplication and two real addition,
Date : 2025-12-29 Size : 1kb User : 常虎
[Software Engineering] Patterns_for_timetriggered_embedded_systems DL : 0: 文件中包含时间触发嵌入式系统设计模式 8051系列微控制器开发可靠应用的英文原版，中文翻译版和C++实例。本书前所未有地提出一整套软件模式，为开发嵌入式软件系统提供帮助。书中讨论了基于广为使用的8051系列微控制器进行设计并应用软件的方法。此外还重点关注了其可靠性。本书从简单系列复杂系统。列举了大量详尽的的实例。-File contains a time-triggered embedded system design 8051 series micro-controller development and reliable application of the English original, the Chinese translation version and C++ examples. This book made an unprecedented set of software model for the development of embedded software systems to help. The book was discussed based on the widely used 8051 series micro-controller design and application methods. In addition, its focus on the reliability of. This book from a simple series of complex systems. Listed a large number of detailed examples.
Date : 2025-12-29 Size : 37.74mb User : 小洋
[Software Engineering] BankSystem DL : 0: 一个强大而复杂的银行模拟程序程序功能要求：模拟一个持有若干银行账号的银行，银行帐户可以通过控制台窗口提供的一个简单用户界面来访问和操作。用户通过发出简单命令必须能：开始指定由银行管理的账户数；在指定帐户上存款；从指定帐户上提款；设置指定帐户的利率；将利息加到所有帐户上；计算帐户结算；计算支付给每个帐户的利息；计算每个帐户的利率；结束模拟。-A powerful and complex banking simulation program Program functional requirements: Simulate a bank holds a bank account, bank account provided by the console window provides a simple user interface to access and manipulate. User must be able to issue simple commands: Began to specify the number of accounts managed by the bank Deposits in specified accounts Withdrawal from the designated account Set the interest rate specified account Add the interest on all accounts Calculate the account balances Calculation of the interest paid to each account Calculate the interest rate for each account The end of the simulation.
Date : 2025-12-29 Size : 101kb User : 幽若小晶
[Software Engineering] 5346363636 DL : 0: ：针对粒子群算法进行多极点函数优化时存在的局部极小点和搜寻效率低的问题，引入了小生境的思想到粒子群算法中，以粒子的最好位置为中心，粒子的最好的个体解对应的适应值为半径建立圆形小生境。stretching 技术，其次对子群体采用解散策略，即当在子群体中找到一个极值点后把子群体解散回归主群体，最后设置子群体创建时的半径阈值，避免子群体半径过大。该算法解决了标准的NichePS0算法在处理多峰函数时，极值点的个数依赖于子群体个数及极值点容易出现重复、遗漏等问题。对3个常用的基本测试函数的实验表明，新算法(SNPsO)在多峰函数寻优中解的稳定性、收敛性和覆盖率均优于标准 NichePS0。-Niching PSO algorithm to deal with complex multimodal function optimization problems exist some defects, asked the the an improved the niche sNPsO algorithm. sNPSO algorithm introduced in which the order of the niche ideas stretching technology is the first application in the main group, the dissolution of the strategy followed by the sub-groups, find an extreme point in the sub-groups after the handle the groups dissolution regression main groups, the final set radius threshold value, the creation of the subset populations avoid subpopulations radius is too large. The algorithm to solve the standard NichePS0 algorithm multimodal function, the number of extreme points depends on the number of sub-groups and the extreme points prone repeat omissions. 3 basic test function experiments show that the new algorithm (SNPsO) in multimodal function optimization solution stability, convergence and coverage are better than standard NichePS0.
Date : 2025-12-29 Size : 163kb User : zhuifenger