实验一 MATLAB运算基础.doc

MATALB程序设计与应用实验报告实验一 MATLAB运算基础一、实验目的1.熟悉启动和退出MATLAB的方法；2.熟悉MATLAB命令窗口的组成；3.掌握建立矩阵的方法；4.掌握MATLAB各种表达式的书写规则以及常用函数的使用。二、实验内容1.先求下列表达式的值，然后显示MATLAB工作空间的使用情况并保存全部变量。 ； z1=2*sin(85*pi/180)/(1+exp(2)z1 = 0.2375，其中； x=2 1+2i;-0.45 5; z2=1/2*log(x+sqrt(1+x2)z2 = 0.7114 - 0.0253i 0.8968 + 0.3658i 0.2139 + 0.9343i 1.1541 - 0.0044i a=(-3.0:0.1:3.0); z3=(exp(0.3.*a)-exp(-0.3.*a)./2.*sin(a+0.3)+log(0.3+a)./2)z3 = Columns 1 through 3 0.7388 + 3.1416i 0.7696 + 3.1416i 0.7871 + 3.1416i Columns 4 through 6 0.7913 + 3.1416i 0.7822 + 3.1416i 0.7602 + 3.1416i Columns 7 through 9 0.7254 + 3.1416i 0.6784 + 3.1416i 0.6196 + 3.1416i Columns 10 through 12 0.5496 + 3.1416i 0.4688 + 3.1416i 0.3780 + 3.1416i Columns 13 through 15 0.2775 + 3.1416i 0.1680 + 3.1416i 0.0497 + 3.1416i Columns 16 through 18 -0.0771 + 3.1416i -0.2124 + 3.1416i -0.3566 + 3.1416i Columns 19 through 21 -0.5104 + 3.1416i -0.6752 + 3.1416i -0.8536 + 3.1416i Columns 22 through 24 -1.0497 + 3.1416i -1.2701 + 3.1416i -1.5271 + 3.1416i Columns 25 through 27 -1.8436 + 3.1416i -2.2727 + 3.1416i -2.9837 + 3.1416i Columns 28 through 30 -37.0245 -3.0017 -2.3085 Columns 31 through 33 -1.8971 -1.5978 -1.3575 Columns 34 through 36 -1.1531 -0.9723 -0.8083 Columns 37 through 39 -0.6567 -0.5151 -0.3819 Columns 40 through 42 -0.2561 -0.1374 -0.0255 Columns 43 through 45 0.0792 0.1766 0.2663 Columns 46 through 48 0.3478 0.4206 0.4841 Columns 49 through 51 0.5379 0.5815 0.6145 Columns 52 through 54 0.6366 0.6474 0.6470 Columns 55 through 57 0.6351 0.6119 0.5777 Columns 58 through 60 0.5327 0.4774 0.4126 Column 61 0.3388 ，其中 t=(0:0.5:2.5); z4=(t=0&t=1&t2).*(t.2-1)+(2=t&t A=12 34 -4;34 7 87;3 65 7; B=1 3 -1;2 0 3;3 -2 7; I=1 0 0;0 1 0;0 0 1; A+6*Bans = 18 52 -10 46 7 105 21 53 49 A-B+Ians = 12 31 -3 32 8 84 0 67 1 A3ans = 37226 233824 48604 247370 149188 600766 78688 454142 118820 A.3ans = 1728 39304 -64 39304 343 658503 27 274625 343 A/Bans = 16.4000 -13.6000 7.6000 35.8000 -76.2000 50.2000 67.0000 -134.0000 68.0000 BAans = 109.4000 -131.2000 322.8000 -53.0000 85.0000 -171.0000 -61.6000 89.8000 -186.2000 A,Bans = 12 34 -4 1 3 -1 34 7 87 2 0 3 3 65 7 3 -2 7 A(1,3,:);B2ans = 12 34 -4 3 65 7 4 5 1 11 0 19 20 -5 403.设有矩阵A和B：求它们的乘积C；将矩阵C的右下角子矩阵赋给D；查看MATLAB工作空间的使用情况。 A=1 2 3 4 5;6 7 8 9 10;11 12 13 14 15;16 17 18 19 20;21 22 23 24 25; B=3 0 16;17 -6 9 ;0 23 -4;9 7 0;4 13 11; C=A*BC = 93 150 77 258 335 237 423 520 397 588 705 557 753 890 717 D=C(3,4,5,2,3)D = 520 397 705 557 890 717 whos Name Size Bytes Class Attributes A 5x5 200 double B 5x3 120 double C 5x3 120 double D 3x2 48 double 4.完成下列操作：求100,999之间能被2