Matlab 上机实验答案 实验一 MATLAB 运算基础 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。 (1) 0122sin851ze >> z1=2*sin(85*pi/180)/(1+exp(2)) z1 = 0.2375 (2) 221 ln(1)2zxx,其中21 20.455ix >> x=[2 1+2i;-0.45 5]; >> z2=1/2*log(x+sqrt(1+x^2)) z2 = 0.7114 - 0.0253i 0.8968 + 0.3658i 0.2139 + 0.9343i 1.1541 - 0.0044i (3) 0.30.330.3sin(0.3) ln,3.0, 2.9,, 2.9,3.022aaeeazaa >> 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) (>> z33=(exp(0.3*a)-exp(-0.3*a))/2.*sin(a+0.3)+log((0.3+a)/2) 可以验证z3==z33,是否都为 1) z3 = Columns 1 through 5 0.7388 + 3.1416i 0.7696 + 3.1416i 0.7871 + 3.1416i 0.7913 + 3.1416i 0.7822 + 3.1416i Columns 6 through 10 0.7602 + 3.1416i 0.7254 + 3.1416i 0.6784 + 3.1416i 0.6196 + 3.1416i 0.5496 + 3.1416i Columns 11 through 15 0.4688 + 3.1416i 0.3780 + 3.1416i 0.2775 + 3.1416i 0.1680 + 3.1416i 0.0497 + 3.1416i Colu mns 16 throu gh 20 -0.0771 + 3.1416i -0.2124 + 3.1416i -0.3566 + 3.1416i -0.5104 + 3.1416i -0.6752 + 3.1416i Colu mns 21 throu gh 25 -0.8536 + 3.1416i -1.0497 + 3.1416i -1.2701 + 3.1416i -1.5271 + 3.1416i -1.8436 + 3.1416i Colu mns 26 throu gh 30 -2.2727 + 3.1416i -2.9837 + 3.1416i -37.0245 + 0.0000i -3.0017 + 0.0000i -2.3085 + 0.0000i Colu mns 31 throu gh 35 -1.8971 + 0.0000i -1.5978 + 0.0000i -1.3575 + 0.0000i -1.1531 + 0.0000i -0.9723 + 0.0000i Colu mns 36 throu gh 40 -0.8083 + 0.0000i -0.6567 + 0.0000i -0.5151 + 0.0000i -0.3819 + 0.0000i -0.2561 + 0.0000i Colu mns 41 throu gh 45 -0.1374 + 0.0000i -0.0255 + 0.0000i 0.0792 + 0.0000i 0.1766 + 0.0000i 0.2663 + 0.0000i Colu mns 46 throu gh 50 0.3478 + 0.0000i 0.4206 + 0.0000i 0.4841 + 0.0000i 0.5379 + 0.0000i 0.5815 + 0.0000i Colu ...