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matlab教程課后作業(yè)-在線瀏覽

2024-10-01 12:39本頁(yè)面
  

【正文】 ,要求在閉區(qū)間上產(chǎn)生具有10個(gè)等距采樣點(diǎn)的一維數(shù)組。5,6,7], C=reshape(1:6,3,2)生成陣列,然后根據(jù)運(yùn)行結(jié)果回答以下問(wèn)題: (1)計(jì)算A*B, B*A,這兩個(gè)乘積相同嗎?(2)計(jì)算A\B, B/A,左除、右除結(jié)果相同嗎?(3)計(jì)算B( : ,[1,2]).*C和C.*B( : , [1,2]),這兩個(gè)乘積相同嗎?(4)計(jì)算A\A和A.\A,這兩個(gè)計(jì)算結(jié)果相同嗎?(5)計(jì)算A\eye(3)和inv(A),這兩個(gè)計(jì)算結(jié)果相同嗎?(提示:根據(jù)對(duì)計(jì)算結(jié)果的目測(cè)回答問(wèn)題)A=magic(3), B=[1,2,1。) 習(xí)題3,先運(yùn)行指令A(yù)=magic(3), B=[1,2,1。),ylabel(39。,2)axis([0,4*pi,1,1])xlabel(39。,39。plot(t,y,39。t=0:pi/50:4*pi。b39。Color39。MarkerSize39。o39。r39。Color39。MarkerSize39。.39。b:39。y=MR*cos(t)。t=0:pi/20:2*pi。r_a=a^(1/3)p=[1,0,0,a]。image39。real39。z1239。z239。z139。MarkerSize39。ob39。LineWidth39。r39。LineWidth39。b39。z2=1+2i?!尽繄D示復(fù)數(shù)的和。z1=4+3*i。z12=z1+z2clf,hold onplot([0,z1,z12],39。,39。,3)plot([0,z12],39。,39。,3)plot([z1,z12],39。,39。,8)hold off,grid onaxis equalaxis ([0,6,0,6])text(,39。)text(5,39。)text(,39。)xlabel(39。)ylabel(39。)shg z12 = + 【】 用MATLAB計(jì)算能得到 –2 嗎?a=8。R=roots(p)MR=abs(R(1))。x=MR*sin(t)。plot(x,y,39。),grid onhold onplot(R(2),39。,39。,30,39。,39。)plot(R([1,3]),39。,39。,15,39。,39。)axis([3,3,3,3]),axis squarehold off r_a = + R = + 【】畫(huà)出衰減振蕩曲線,的取值范圍是。y=exp(t/3).*sin(3*t)。r39。LineWidth39。t39。y39。3,4,3。3,4,3。試用兩種不同的指令實(shí)現(xiàn)(提示:冒號(hào)生成法,定點(diǎn)生成法)(1) 冒號(hào)生成法:A=0:2*pi/9:2*pi A = 0
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