MATLAB实验报告实验6.doc

10*2011 11 28 23456812131417 20 22 24 25 273?x?2cost?3?y?2sint?1t?0,2?theta=-pi0.01pi x=2*cos(theta).3 xy=2*sin(theta).3 yplot(x,y,b-) x-yb- x?2?0.5x2?x?62f(x)?1.5?0.25x?0.5x?6?x09y0,1.5f(x)xy x=0:0.1:9;y=(0.5*x).*(x>=0&x<=2)+(1.5-0.25*x).*(x>2&x<=6)+(0.5).*(x>6&x<=9); %yxplot(x,y,-red) %xyaxis(0, 9, 0, 1.5) %xytext(2,1,(2,1); %title(); %xlabel(x); %xylabel(y); %ylegend(y)xyxy?3 f(t)? ?f1(?)*f2(t?)d?matlabmatlab matlab?3 matlab ?12 matlab ?17 matlab ?23 matlab ?31 matlab-gui ?35 matlab ?56 matlab ?62 matlab1. matlab2. matlab3. matlab4. 5. matlab6. matlab7. 1. cd,clear,dir,path,help,who,whos,save,loadcd clear matlabdir ()path help who matlabwhos matlabsave matworkspacematmatlabload workspacemat 2. mybinmydata3. 12?2*(7?4)?32matlabx=(12+2*(7-4)/32x = 24. matlabo 2sin85z?2 1?e1z2?12ln(x?21?2i?2?x),x?0.455?matlab>> z1=2*sin(85*pi/180)/(1+exp(2)z1 = 0.2375>> x=2,1+2i;-0.45,5;z2=log(x+sqrt(1+x2)/2z2 =0.7114 - 0.0253i 0.8968 + 0.3658i0.2139 + 0.9343i 1.1541 - 0.0044i5.matlabinvplotmaxround >> help invinv matrix inverse.inv(x) is the inverse of the square matrix x.a warning message is printed if x is badly scaled ornearly singular.>> help plotplot linear plot.plot(x,y) plots vector y versus vector x. if x or y is a matrix, then the vector is plotted versus the rows or columns of the matrix, whichever line up. if x is a scalar and y is a vector, disconnected line objects are created and plotted as discrete points vertically atx.plot(y) plots the columns of y versus their index.various line types, plot symbols and colors may be obtained with plot(x,y,s) where s is a character string made from one element from any or all the following 3 columns:b blue . point - solid g green o circle : dotted r red x x-mark -. dashdot c cyan + plus - dashed m magenta * star (none) no line y yellow s squarek black d diamondw white v triangle (down) triangle (up)< triangle (left)> triangle (right)p pentagramh hexagramfor example, plot(x,y,c+:) plots a cyan dotted line with a plus at each data point; plot(x,y,bd) plots blue diamond at each data point but does not draw any line.for example, plot(x,y,y-,x,y,go) plots the data twice, with a solid yellow line interpolating green circles at the data points.through the first six colors in the table. for monochrome systems, plot cycles over the axes linestyleorder property.if you do not specify a marker type, plot uses no marker.if you do not specify a line style, plot uses a solid line.plot(ax,.) plots into the axes with handle ax.matlab 1002100405102 20121221 matlab1matlab21. matlabmatlab2. matlab3. matlab 1 2 3 31 4 matlabmatlabmatlab2 matlab3 matlab4 matlab5 matlab4. matlab6 5. matlab6. matlab8 9 12matlab6.5matlab 34helphelp eyeeye6m-fileexerc1exerc2exerc3?matlabm-filea2 clcclearclc clear3 c=1:2:20cii=1,2,3,?,10c=1:2:201202c135?1719cimatlab 2_ 1001 matlab 2011 3 9_ _ 1001 100610106 1.2.3.4. matlab matlab matlab matlab 6.5 1. matlab1z1=1?2i?22sin8512?x2z=ln(x+) , x=?0.45? 251?e22?e0.3a?e?0.3a0.3?a(3)z3=sin(a+0.3)+ln ,a=-3.0,-2.9,-2.8,2.8,2.9,3.022(a)?t20?t?1?4z4= ?t2?11?t?2?t2?2t?12?t?3?)2. ,t=0:0.5:2.5(?1234?4?13?1? 3 a=34787 b=20?3657?3?27?1 a+6*ba-b+i(i)2 a*ba.*b3 a3a.34 a/bba5