点击切换搜索课件文库搜索结果(11724)
文档格式:DOC 文档大小:310.5KB 文档页数:7
第三章矩阵的初等变换 3.1矩阵的秩 1.子式:在An中,选取k行与k列,位于交叉处的k2个数按照原来的 相对位置构成k阶行列式,称为A的一个k阶子式,记作D 对于给定的k,不同的k阶子式总共有C个 2.矩阵的秩:在A中,若 (1)有某个r阶子式D,≠0; (2)所有的r+1阶子式D+1=0(如果有r+1阶子式的话) 称A的秩为r,记作 rankA=r,或者r(A)r.规定:rank
文档格式:PPT 文档大小:104.5KB 文档页数:10
simple counters Counting is a fundamental function of digital circuits. A digital counter consists of a collection of flip-flops that change states (set or reset) in a prescribed sequence
文档格式:PDF 文档大小:587.03KB 文档页数:32
Franklin Allen and Douglas gale Topic 1: What is Corporate Finance? Readings A Ph. D. textbook that provides basic coverage of some of the main topics is J. A. de Matos. Theoretical Foundations of Corporate Finance, Princeton: Princeton University Press, 2002) There are many MBa textbooks. A very good one is R.A. Brealey and S.C. Myers, Principles of Corporate Finance, 7th edition(New York
文档格式:PDF 文档大小:181.93KB 文档页数:13
In particular, when o=0, this yields the definition of a Lyapunov function Finding, for a given supply rate, a valid storage function(or at least proving that one exists)is a major challenge in constructive analysis of nonlinear systems. The most com-
文档格式:PPT 文档大小:212.5KB 文档页数:53
3.1 Preface 1. data object--- a set of instances or values for example: Boolean={ false,true} Digit={0,1,2,3,4,5,6,7,8,9} Letter={A, B, ....., a,b, ..... Z} NaturalNumber= {0, 1,2, ..... Integer={0,+1,-1,+2,-2,+3,-3,} String={a,, ..... ,aa, ab, ac
文档格式:DOC 文档大小:128.5KB 文档页数:2
一、选择填空(本题共14分,每小题2分) 1 1.(2)疲劳极限2.(4)F23.4)边界摩擦4.(2)动力粘度 5.(3)3%6.(4)自由锻造毛坯 7.(1)对称循环 二、按图选答案(本题共16分,每小题2分) 1.b2.c3.b4.a5.c6.a7.c8.c 三、回答问题(本题共16分) 1.1-C,2-E,3-A,4-B,5-D 2.1)蜗杆-齿轮减速器传动Ⅱ 2)带-齿轮减速器I
文档格式:PPT 文档大小:24.67MB 文档页数:58
Intensive Study As His Name Is, So Is He! Para.1 For her first twenty-four years, she'd been known as Debbie-a name that didn't suit her good looks and elegant manner. \My name has always made me think I should be a cook, she complained. \I just don't feel like a Debbie.\
文档格式:DOC 文档大小:143.5KB 文档页数:4
二章习题课 例题一、如图所示的构件,B为中间铰,受载荷如图所示。 求:A、C处的约束反力。 q M A a a 〔思路 1、在解题前,先回顾一下固定端约束的情形。分别以旗杆、墙上钉的铁钉等,介绍其约 束情况(反力的个数) 2、需要求解的未知数为4个,只选取一次研究对象不能解决问题,需要补充方程。故可 以考虑先选取BC为研究对象,在以整体为对象,即可求解。 解)
文档格式:PPT 文档大小:92KB 文档页数:4
一、逆幂法分析 设n阶实方阵A有n个线性无关的特征向量u12…n 相应的特征值分别为,2…n,并按其绝对值的大小排列 即 则由A1=u,可得Au1=u,即A的逆矩阵A的特征值为
文档格式:PPT 文档大小:254KB 文档页数:23
一、AD、DA的实际需求 二、D/A转换 三、A/D转换
首页上页5354555657585960下页末页
热门关键字
搜索一下,找到相关课件或文库资源 11724 个  
©2008-现在 cucdc.com 高等教育资讯网 版权所有