线性代数的许多应用都需要时间来发展。在一个小时内解释它们并不容易。教师和作者必须在使理论 完整与加入现代应用之间做选择。通常是理论获胜,然而本节是个例外。本节解释了上世纪最有价值的 数值算法。 我们想快速地乘上傅里叶矩阵 F 与它的逆 F−1。这通过快速傅里叶变换完成。一个普通乘积 Fc 用到 n2 次乘法(F 具有 n2 项)。FFT 仅需要 n 乘以 12 log2 n 次乘法。我们将看到这是如何实现的。 FFT 彻底改变了信号处理。整个行业都因该思想而迅速发展。电气工程师是第一个知道其中区别 的人——当他们遇见你时会取你的傅里叶变换(假设你是个函数)。傅里叶的思想是将 f 表示为谐波 ckeikx 的和。在频率空间中通过系数 ck 观察该函数,而非在实际空间中通过其值 f(x) 来观察它。c 与 f 间的前向、后向通道是由傅里叶变换实现。快速通道由 FFT 实现。中文翻译Introduction to Linear Algebra, 5th Edition 9.3节 单位根与傅里叶矩阵 二次方程有两个根(或者一个重根)。n 次方程具有 n 个根(算上重复次数)。这是代数基本定
2022-12-26 15:26:20 1.22MB 线性代数 数学
1
这是一个强大的手机维修工具,几乎支持所有知名品牌的手机; 功能不仅仅是解除账号锁、屏幕锁;还有更多.............. 软件是2019年4月的版本,完美运行。
2022-12-22 19:46:41 912.93MB Miracle Thunder Edition 2.93
1
Murach's Java Servlets and JSP, 2nd Edition.高清文字版,并加入了书签--part2
2022-12-22 00:07:05 43.03MB Murach Servlets JSP 文字版
1
(解压密码 share.weimo.info)The study of network theory is a highly interdisciplinary field, which has emerged as a major topic of interest in various disciplines ranging from physics and mathematics, to biology and sociology. This book promotes the diverse nature of the study of complex networks by balancing the needs of students from very different backgrounds. It references the most commonly used concepts in network theory, provides examples of their applications in solving practical problems, and clear indications on how to analyse their results.,解压密码 share.weimo.info
2022-12-14 19:29:30 5.3MB 英文
1
Abstract Dynamic Programming THIRD EDITION Dimitri P. Bertsekas
2022-12-10 09:28:38 7.46MB 书籍
1
Introduction to Finite and Spectral Element Methods Using MATLAB®Second Edition This book contains information obtained from authentic and highly regarded sources. Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. The authors and publishers have attempted to trace the copyright holders of all material reproduced in this publication and apologize to copyright holders if permission to publish in this form has not been obtained. If any copyright material has not been acknowledged please write and let us know so we may rectify in any future reprint.
2022-12-08 16:19:17 1.82MB Matlab 有限元 谱元法 微分方程数值解法
1
unity avpro video插件 ultra edition 2.6.1版本 windows android ios macOS tvOS WebGL多平台支持。支持unity版本从2018.x - 2022.x,arm-v7a, arm64-v8a, x86 and x86-64
2022-12-08 11:27:42 52.49MB unity unity3d avpro
1
经典好用的压缩包爆破软件,支持ZIP和RAR格式,CTF必备软件。
2022-12-07 20:11:42 7.58MB ctf工具 密码爆破 压缩包
1
Windows Internals 7th Edition Part 1-2017-英文版.pdf
2022-12-06 16:23:27 49.67MB windows
1
联迪支付设备PC端集成管理软件
2022-12-05 21:31:29 556.17MB 联迪
1