MATLAB期末考试试卷

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MATLAB
ὃᔁᐸὃᫀஹ⚪1ஹMATLABᵨ☢ᒹ_ஹஹஹ_ஹᑁᦪᘤஹMᦻ/ᘤஹ!/"#ᘤஹ$%&஺2ஹMATLAB(Infᡈinf⊤,_ஹNaNᡈnan⊤,_ஹnargout⊤,_஺3ஹMATLAB(⌹./⌕ᵨ1ᵨ2ᐭ452ᐭ46Ḅᑖ◞:;4ஹ"#ᘤ/⌕ᵨ<ᑁ=4Ḅ_ஹ_>஺5ஹMATLAB?@AᐰC᪗EᣚGᓫC᪗ḄᢣJG_ஹKᓫC᪗ᣚLMᐰC᪗ḄᢣJG6ஹNOᦪḄ᪗Pᨵ_ஹ_ஹ“S1”᪗P஺NஹTU⚪1ஹTVMATLABᔊXᢣJḄ/⌕ᵨ஺2ஹTVᦪḄYᵨ஺3ஹTVMATLABZᦪḄ[\]᪀஺4ஹTV_ᑴNO$%Ḅabc஺dஹ▅fghijUk⚪(m⚪4ᑖnᐳ28ᑖ)1ஹᑏMCᑡᢣJst]u஺A=zeros(2,4);A(:)=l:8;s=[235];A(s)Sa=[102030]'

1A(s)=Sa2ஹᑏMCᑡᢣJst]u஺A=reshape(l:16,2,8)reshape(A,4,4)s=[l3689111416];A(s)=O3ஹᑏMCᑡᢣJst]u஺A=[l,2;3,4];B=[-l,-2;2;l];S=3;A.*BA*BS.*AS*B4ஹC☢ḄZᦪ/⌕vᡂxyYz?functionf=factor(n)ifn<=l41;elsef=factor(n-l)*n;

2end5ஹᑏMCᑡᢣJst]u஺ch="ABcl23d4e56Fg9,;subch=ch(l:5)revch=ch(end:-l:l)k=find(ch>=4an&ch<=6z');ch(k)=ch(k)-Ca'-A');char(ch)6ஹᑏMCᑡᢣJst]u஺A(1,1)={'thisiscell');A{1,2}={[123;456]};A{2,l}=[l+2*i];A{2,2}=A{1,2}{1}+(A{1,2}{1}(1,1)+A{1,2}{1}(2,2));celldisp(A)7ஹC☢ḄghvᡂYz|xy}t=0:pi/50:4*pi;yO=exp(-t/3);y=exp(-t/3).*sin(3*t);plot(t,y;-r,,t,yO;:b;t,-yO;:b,)xlabel(u\bf\itt');

3ylabelC\bf\ity';gridon;~ஹg⚪32ᑖ1ஹ1ஹᙠ$ᑖᵨ⁐?>⁐_ᑴyl=sin
x>y2=cos
xᙠ0,4*piḄniᵨ.*᪗MᩩḄ$஺5ᑖ2ஹᑖᙠ$%Ḅ$_ᑴy=sin
tsin
9t>y=sin
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9tᐸᒹ஺
4ᑖ3ஹᖪᡠ¢£Ḅᖪ¤?tᡭᢚ├¨n᪗©᝞Cᖪ¤«¬ᵨpriceᩭ⊤,®price<200¯ᨵᢚᡷ200fফ=2Zᦪ஺6ᑖ5ஹᑏµ¶·ᡂ¸¹ᳮḄgh12ᑖA.᪀⌼µ¶·]᪀nᒹ¶·Ḅ¶.n¼½n¾g½¿▲ÁÂnὃᡂ¸>ÄᙳÆ&Ç;
4ᑖB.ÈÉÊnËÌ2ᐭNµ¶·ḄÍÎnᑖAÏж·ḄÍÎᐭᑮÒÓḄÇnÔÇ(¯ᨵÆᓽGᡈ0iÖLÄᙳᡂ¸ᑏᐭᑮÄᙳÆÇ஺4ᑖC.᪷KÄᙳÆ᣸hni2M¶·Ḅ¼½ஹ¶.>Äᙳᡂ¸஺4ᑖ

4ὃᫀஹ⚪1ᑖ20ᑖ1ஹMATLABᵨ☢ᒹÚJஹ"#ᘤஹÚJᔊXஹÛÜÝÞஹᑁᦪᘤஹMᦻ/ᘤஹ!/"#ᘤஹ$%&஺2^MATLABInfᡈinf⊤,ßàᜧஹNaNᡈnan⊤,|µᦪஹnargout⊤,Zᦪ2Mâ4ᦪÝ஺3ஹMATLAB(⌹./⌕ᵨ⌕ã,ÖL]uḄᢣJ5ᐸäᢣJḄᑖ◞;ᵨ2ᐭ452ᐭ46Ḅᑖ◞:;ᵨᦪᐗæᑖ◞:.஺4ஹ"#ᘤ/⌕ᵨ<ᑁ=4Ḅç▅ஹè>஺5ஹMATLAB?@AᐰC᪗EᣚGᓫC᪗ḄᢣJGSub2indஹKᓫC᪗ᣚLMᐰC᪗ḄᢣJGInd2subo6ஹNOᦪḄ᪗Pᨵ“ᐰC᪗”᪗Pஹ“ᓫC᪗”᪗Pஹ“S1”᪗P஺7ஹᙠµᐗêᦪA(ëìí2tí3ᑡᐗêᐗæᵨA
2,3;ëìᦪí2tí3ᑡᐗê(ḄᑁîᵨA{2,3}஺8ஹMATLAB(elfᵨ<ï◀$%ஹclcᵨ<ï◀ᢣJ(ã,ᑁîஹclearᵨ<ï◀MATLAB(èḄ=4஺ஹ⚪⚪5ᑖᐳ20ᑖ1.TVMATLABᔊXᢣJḄ/⌕ᵨ஺ᔊXᢣJñÞḼᵨᡝᙠMATLABᢣJ(ᡠ2ᐭôḄᡠᨵᢣJ஺ᔊXñÞᒹ®mõö÷MATLABḄønmõö÷MATLABäᙠᢣJ(stôḄᡠᨵᢣJ஺ÓᵨYzᨵᓫtᡈùtᢣJḄúᑴ>stஹ·ᡂMᦻ&஺2ஹTVᦪḄYᵨ஺“”ᦪḄYᵨ®ᙠ¯ᨵ“”ᦪû5ḄsLønÖL]u(Ḅ“”üᔠᳮᙢÿ“ᡠḄ”ᵨ“”ᦪᐸᦪᦋᦪḄᜧᦋᦪḄᦪ஺

53ஹ$%MATLAB&ᦪḄ'(᪀஺ᐺ+M&ᦪᦻ-Ḅ᪀.&ᦪᵭ0(2)4(Functiondeclarationline)ஹHl4(Thefirsthelptextline)ஹᙠ678ᦻ((Helptext)9ஹ:ᑏ<=ᦋ>?ஹ&ᦪ@(Functionbody)஺4ஹ$%AᑴCDEḄFGHI஺AᑴCDEḄFGHIJ.K6ᦪLMᜓஹ⌱2DEPQRDSTஹUᵨCK6ADᢣWஹXTYḄ[ஹᙶ᪗ᑖ_6ஹDE`ஹDEḄabcd஺eஹ▅ghijklm⚪(o⚪4ᑖᐳ28ᑖ)1ஹᑏqrᑡᢣW4஺A=zeros(2,4);A(:)=1:8;s=[235];A(s)Sa=[102030]1A(s)=Saans=235Sa=102030A=120307104682ஹᑏqrᑡᢣW4஺A=reshape(1:16,2,8)

6A13579111315246810121416reshape(A,4,4)ans=15913261014371115481216s=[13689111416];A(s)=0A=005700131524001012003ஹᑏqrᑡᢣW4஺A=[l,2;3,4];B=[-l,-2;2,l];S=3;A.*BA*BS.*AS*B

7ans-1-464ans=305-2ans=36912ans=-3-6634ஹr☢Ḅ&ᦪu⌕wᡂyz{?functionf=factor(n)ifn<=lf=lelsef=factor(n-l)*n;endᑭᵨ&ᦪḄ⌴Uᵨn!஺5ஹᑏqrᑡᢣW4஺ch=tABc123d4e56Fg9';subch=ch(l:5)revch=ch(end:-l:l)k=find(ch>=ta,&ch<=6z,);ch(k)=ch(k)-Ca,-tA,);char(ch)

8length(k)subch=ABcl2revch=9gF65e4d321cBAans=ABC123D4E56FG96ஹᑏqrᑡᢣW4஺A(1,1)={'thisiscell'}A{1,2}={[123;456]};A{2,l}=[l+2*i];A{2,2}=A{1,2}{1}+(A{1,2}{1}(1,1)+A{1,2}{1}(2,2));celldisp(A)A{151}=thisiscellA{251}=1.0000+2.0000iA{1,2}{1}=123456A{2,2}=7891011127ஹᙠ®F¯D°Aᑴ±¯&ᦪ²±¯&ᦪᑖ³´:y=e(-t/3)y0=e(""*sin(3t)ᐸ°y´ᵨº⁐Ḅb¼6½y0´ᵨᐲ⁐Ḅ¿6AᑴtḄ9À´Á0:4ᐔÃ,

9tḄHÄJᐔ/50,tY

10case{0,1}%Ô_Ö200rate=0;case(2,3,4}%Ô_ᜧÖ×Ö200Ö500rate=3/100;casenum2cell(5:9)%Ô_ᜧÖ×Ö500Ö1000rate=5/100;casenum2cell(10:24)%Ô_ᜧÖ×Ö1000Ö2500rate=8/100;casenum2cell(25:49)%Ô_ᜧÖ×Ö2500Ö5000rate=10/100;otherwise%Ô_ᜧÖ×Ö5000rate=14/100;endprice=price*(l-rate)%ÐqᖪÓ¼▭├ÚÔ_4ஹlᫀfunctionf=fab(n)if(n==1)f=1elseif(n=2)f=2;eIsef=fab(n-1)+fab(n-2);end5ஹlᫀstr1='';str2='';str3=

11val=celI(5,2)azeros(5,1);ave=0;student=struct('Name',str1,'No',str2,1Scores1,vaI,,Ave',ave);n=input(*pIeaseinputstudentsnumber:');fori=1:nstr1=input(fName:1);str2=input('No.:');%fork=1:2%vaI(k,:)input('CurricuIumsandScores:;%a(k,1)=val{k,2};%end%vaI(1,:)=inputCCurriculum:*);%vaI(:,2)=input(*Scores:1);vaI=input(fpIeaseinputfiveCurriculumsandScores:');fork=1:5a(k,1)=val{k,2};endstudent(i).Name=str1;student(i).No=str2;student(i).Scores=val;student(i).Ave=mean(a);endforii=1:(1ength(student)-1)iptr=ii;forjj=ii+1:Iength(student)

12if(student(jj).Ave>student(iptr).Ave)iptr=jj;endendifii~=iptrtemp=student(ii);student(ii)student(iptr);student(iptr)=temp;endendforii=1:length(student)ifstudent(ii).Ave>80disp(student(ii).Name);disp(student(ii).Ave);endenddisp(['studentname*,bIanks(6),'studentno.',bIanks(6),'studentaverage']);disp('')forii=1:Iength(student)disp([student(ii).Name,bIanks(20),student(ii).No,blanks(20),num2str(student(ii).Ave)]);end