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【例 2.11.3-4】“孤维”的撤消和降维。 B=cat(4,A(:,:,1),A(:,:,2),A(:,:,3)) B(:,:,1,1) = 1 3 5 2 4 6 B(:,:,1,2) = 7 9 11 8 10 12 B(:,:,1,3) = 13 15 17 14 16 18 size(B) ans = 2 3 1 3 C=squeeze(B) C(:,:,1) = 1 3 5 2 4 6 C(:,:,2) = 7 9 11 8 10 12 C(:,:,3) = 13 15 17 14 16 18 size(C) ans = 2 3 3 【例 2.11.3-5】赋“空阵”值操作。 A=reshape(1:18,2,3,3) A(:,:,1) = 1 3 5 2 4 6 A(:,:,2) = 7 9 11 8 10 12 A(:,:,3) = 13 15 17 14 16 18 A(:,2:3,:)=[] B=A; A(:,:,1) = 1 2 A(:,:,2) = 7 8 A(:,:,3) = 13 14 size(A) ans = 2 1 3 A_1=squeeze(A) 15
A_1 = 1 7 13 2 8 14 size(B) ans = 2 1 3 B(:,1,:)=[] B = Empty array: 2-by-0-by-3 2.12 “非数”和“空”数组 2.12.1 非数 NaN 【例 2.12.1-1】非数的产生和性质演示。 (1) a=0/0,b=0*log(0),c=inf-inf Warning: Divide by zero. a = NaN Warning: Log of zero. b = NaN c = NaN (2) 0*a,sin(a) ans = NaN ans = NaN (3) a==nan ans = 0 (4) a~=nan a==b b>c ans = 1 ans = 0 ans = 0 (5) class(a) isnan(a) ans = double ans = 1 16
Page 1 and 2: 内容简介本书由纸质媒
Page 3 and 4: 环境下的 MATLAB3.0 经汉化而
Page 5 and 6: 数值计算基础软件库变化,
Page 7 and 8: 材或自学用书,又能当作实
Page 9 and 10: 第一章基础准备及入门本
Page 11 and 12: ⎡1 【例 1.3.2-2】简单矩阵
Page 13 and 14: t=0:pi/20:2*pi;x=R*sin(t);y=R*cos(t
Page 15 and 16: 1.5.2 历史指令行的再运行
Page 17 and 18: 1.7.1 Workspace Browser 工作空
Page 19 and 20: 一存取数据文件的指令操
Page 21 and 22: 一 “纯文本”帮助【例 1.
Page 23 and 24: 三 Search 搜索窗图 1.10-2 【
Page 25 and 26: and('state',0) x=rand(1,5) x = 0.95
Page 27 and 28: 上进行)。 (1) Num=[1,0,0,0,1;0,
Page 29 and 30: P=poly(R) PR=real(P) PPR=poly2str(P
Page 31 and 32: 2.9.2 数组操作函数【例 2.9
Page 33 and 34: AB_r = 1 4 7 0 0 222 2 5 8 0 0 222
Page 35 and 36: 2.11.1 高维数组的创建【例
Page 37: ans(:,:,3) = 14 16 18 13 15 17 flip
Page 41 and 42: (3) b_c1=b.*c b_c2=b'*c b_c3=b*c' b
Page 43 and 44: L4 = 0 0 1 1 0 0 0 【例 2.13.2-2
Page 45 and 46: a_s 1x2 16 double array ans 1x4 8 c
Page 47 and 48: 3.1.3.3 转换函数产生数码字
Page 49 and 50: 0.9501 0.4860 0.2311 0 0.6068 0 3.1
Page 51 and 52: f2=R_A_C{1,3} class(f2) f2 = sin(-3
Page 53 and 54: ans = 31.2000 30.4000 31.6000 28.70
Page 55 and 56: poly2str(FC{1},'s') FC = [1x4 doubl
Page 57 and 58: 1x5 struct array with fields: f % d
Page 59 and 60: [1x1 struct] [] [1x1 struct] [1x5 d
Page 61 and 62: 4.2.1 LU 分解、行列式和逆 4
Page 63 and 64: T_full = 0.2200 T_part = 3.1300 d =
Page 65 and 66: 【例 4.3.4-3】sin 的数组运
Page 67 and 68: Dx = 3 3 3 3 3 3 Dx_2 = 1 1 1 1 1 1
Page 69 and 70: [tt,yy]=ginput(5);zoom off tt tt =
Page 71 and 72: 4.7 函数极值点 4.7.1 一元函
Page 73 and 74: g = sum(W.*feval(fun,t))*(b-a)/2;
Page 75 and 76: In D:\MATLAB6p5\work\double_int.m a
Page 77 and 78: set(gca,'Xtick',[0,3,11,14]),grid
Page 79 and 80: 4.9.3.1 泊松分布(Poisson distri
Page 81 and 82: chi2(n)=sum((y-ye).^2)/dy/dy; end Q
Page 83 and 84: 16 14 12 10 8 6 4 2 y=3*exp(-0.4*x)
Page 85 and 86: 4.11.1 一维插值【例 4.11.1-1
Page 87 and 88: 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0
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(1) [fzzysym.m] function [A_sym,B_s
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图 4.13-1 【例 4.13.2.3-3】运
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w(Tow,1)=ones(length(Tow),1); % plo
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otherwise error(['Unknown flag '''
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(1) [DYDt4.m] function varargout=DY
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2.5 2 1.5 1 0.5 0 -0.5 -1 -1.5 插
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SM2=sparse(2:n,1:n-1,ones(1,n-1),n,
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第五章符号计算符号计算
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Ms = [ a, b] [ c, d] (2) SizeMn=siz
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2 ⎡ 3 x + 3 3x ⎤ ⎢ + ⎥ 【
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(3) f2=subs(f,{a,x},{2,sym(pi/3)})
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x2 ⎡ x ⎤ 1e ⎢ ⎥ 【例 5.3.
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yt = (-1+exp(1-t)*t)*Heaviside(t-1)
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D0=subs(Delta,n,0); % D15=subs(Delt
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5.6.3 微分方程符号解示例
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2 2 6 2 4 4 2 6 x~ + y - 1/6 x~ - 1
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第六章数据和函数的可视
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t=(0:pi/50:2*pi)';k=0.4:0.1:1;Y=cos
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% dx=0.5;dy=1;T=[1,0,dx;0,1,dy;0,0,
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y → 1.2843 1.05 1 0.95 6.2.4 图
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200 100 6.2.5.3 多子图 0 0 2 4 6
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6.3.3 透视、镂空和裁切 40 3
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6.4 特殊图形和高维可视化
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subplot(1,2,1),bar3(x',Y',1) xlabel
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6.4.1.5 射线图 compass 和羽毛
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6.4.1.8 离散杆图 stem , stem3
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1 0.5 0 -0.5 10 5 0 -5 -10 -10 图
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shading faceted,colorbar('horiz'),b
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图 6.4-19 % clf;v1=min(min(min(V))
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6.5.1 视点控制和图形的旋
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6.5.3 照明和材质处理 6.5.3.1
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图 6.5-10 【例 6.5.4.3-3】本
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alpha('interp') 6.6 图象 6.6.1
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6.6.3 8 位和 16 位图象【例
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6.7.2 二维图形的交互编辑
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图 6.8-2 【例 6.8.2-2】使用
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第七章 M 文件和面向对象
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end; i,a(i), i = 21 ans = 10946 7.3
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7.4.1 M 脚本文件 7.4.2 M 函数
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subplot(1,3,2),exm07052_1(r1,r2,'Ma
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Your variables are: t theta y 【
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2.6279 7.7 函数句柄 7.7.1 函
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otherwise error('输入宗量只能
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7.9.2.2 调试器应用示例图 7
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(7) 图 7.9-4 图 7.9-5 (9) randn('
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7.10 面向对象编程 7.10.1 概
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[m,n]=size(q); vname=inputname(1);
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assignin('caller',inputname(1),q1);
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s.name=['(' class(v) ')']; end Q=qu
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8.1.2 SIMULINK 入门图 8.1.1-1
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8.1.3 SIMULINK 库浏览器界面 8
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(a)缺省状态 (7)模块名的操
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2 ⎧ t 0 ≤ t < T ⎪ 2 u( t) =
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8.3.1.1 积分模块的功用【
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8.3.2 非线性系统 8.3.2.1 建
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(3) (4) 图 8.3.2.2-1-4 8.4 子系
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(3) (4) (5) (6) (7) 图 8.4.2.2-1-1
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【例 8.4.3.1-1】利用使能原
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(2) (3) (4) 图 8.4.3.4-1-1 图 8.4
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(2) 8.5.2 多速率离散时间系
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8.6 SIMULINK 的分析工具 8.6.1
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2.0000 -1.0000 (5) eA=eig(A)',eA1=e
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(6) xa=trim('exm080634_1',[-1,-2]')
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3 3.144 3.138 4 4.626 4.591 5 7.155
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8.7.3.1 代数环的形成【例 8
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% % switch flag, case 0, [sys,x0,st
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(6) 图 8.8.3.2-5 图 8.8.3.2-6 图
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第九章句柄图形与第 6 章
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9.3.3 对象属性的缺省设置
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9.6.3 轴刻度的属性控制 9.6.
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line(0.24,0.23,'Marker','^','Marker
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light('Position',[0 -1.5 0],'color'
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9.7.6 surface 指令衍生不同曲
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Y=5*[0 0 0 0;0 1 1 0;1 1 1 1;1 0 0
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end (2) (3) 15
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图 10.1-1 (2) h_text=uicontrol(h_f
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10.2.1 设计原则 (1)简单性 (2
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图 10.3-5 (4) uimenu('Label','Test
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'callback',[... 'grid on,',... 'set
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10.3.4 现场菜单的制作图 10
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图 10.4-1 10.4.3.2 静态文本框
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【例 10.4.3.3-1】目标:制作
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[calledit2.m] function calledit2( )
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10.6.1 界面设计工具的结构
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(1)步骤一: (2)步骤二: (3)步
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guidata(fig, handles); set(handles.
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第十一章 MATLAB 编译器几
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图 11.2-2 11.2.3 为产生独立
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11.3.2 由 M 文件创建外部应
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mccstartup not found. exm3* not fou
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够识别出 nargin、nargout、for
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11.6.3.3 由包含绘图指令的 M
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disp('矩阵 A 的奇异值 = ') el
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1.4 1.2 1 0.8 0.6 0.4 0.2 0 -0.2 -0
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图 11.6-6 17
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12.1.3 C 语言 MEX 文件源程序
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* 其他 C 源码……*/ } (2) #in
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} input_buf0=(char *)mxCalloc(bufle
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mex exm120153_2.cpp (3) exm120153_2
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printf("Error reopening file %s\n",
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GlobalDouble,LocalDouble,LocalStrin
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#define BUFSIZE 512 int main() { En
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图 12.3-3 12.3.3 利用 VC++ 6.0
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(2) #include "engine.h" #include "m
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} (3) (4) (5) cout
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invoke(excel, 'Quit'); 图 12.4-1 1
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(2) 图 12.4-5 图 12.4-6 24
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Private Sub CommandButton1_Click( )
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(4) (5) Private Sub CommandButton1_
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(1) 图 12.5-3 图 12.5-4 30
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(3) (4) TextInput.LinkMode = vbLink
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(3) 图 12.5-11 34 图 12.5-10
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36 图 12.5-14
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13.2.1 从 Word 中启动 Notebook
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plot(t,y,'k','LineWidth',4) % hold
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13.3.3.3 整个 M-book 文件的运
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13.4.1 在 M-book 中实现计算
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(2) (3) syms t s a w ft=exp(-a*t)*s
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B.1 光盘文件的结构附录 B:
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失彼,而造成仿真失败。本
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参考文献 [1] M.L.Abell, J.P.
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