matlab-programing-for-engineers英文课件PPT推荐.ppt

matlab-programing-for-engineers英文课件PPT推荐.ppt

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70%TestsAnin-classopen-bookfinal,1Introduction（1.1-1.5）2MATLABBasics（2.1-2.10,2.13,2.14）3Top-downProgramDesign（3.1-3.2）4RelationalandLogicalOperators（3.3,4.3）5BranchesandLoops（3.4,4.1,4.2,4.4）6Plotting（2.11,3.5,6.4,6.5）7User-definedFunctions（5.1-5.9）8ComplexDataandCharacterData（6.1-6.3）9Input/OutputFunctions（8.1-8.11）10SparseArrays,CellArrays,andStructures（7.1-7.5）,Contents,IntroductiontoMATLAB,MATrixLABoratory,MATLABarrayAdvantagesofMATLABEaseofusePlatformindependencePredefinedfunctionsPlottingDisadvantagesofMATLABCanbeslowaninterpretedlanguageExpensive,MATLABEnvironment,MATLABDesktopCommandWindowFigureWindowsEdit/DebugWindowCommandHistoryWindowLaunchPadWorkspaceBrowserandArrayEditorHelpBrowserCurrentDirectoryBrowser,MATLABDesktop,WorkspaceBrowser,CommandWindow,CurrentDirectoryBrowser,CommandHistoryWindow,Tovieworchangethecurrentdirectory,HelpBrowser,MATLABDesktop,LaunchPad,TheCommandWindow,Thecommandprompt（）ispredefined,usepiEllipsis（）,continuingonthenextlinex1=1+1/2+1/3+1/4+1/5+1/6;

andx1=1+1/2+1/3+1/4+1/5+1/6;

TheCommandHistoryWindow,TheLaunchPad,TheEdit/DebugWindow,CreatenewM-files“File/New/M-file”ClickingtheToolbariconOpenanexistingone“File/Open”ClickingtheToolbaricon,TheEdit/DebugWindow,FigureWindows,TheMATLABWorkspace,whosvar1clearDeletesallvariablesclearvar1var2,TheWorkspaceBrowser,GettingHelp,UsetheHelpBrowserSelectingtheHelpiconTypinghelpdeskorhelpwinintheCommandwindow,GettingHelp,Command_lineorientedwaytogethelpTypehelporhelpfun1inthecommandwindowSearchesforanexactfunctionnamematchTypelookforcommandSearchesthequicksummaryinformationineachfunctionforamatch,AFewImportantCommands,Typedemoorselect“demos”intheLaunchPadclcclfClearc（control-c）,abort!

Invokeoperatingsystemcommanddiary（diaryfileneme,diaryoff,diaryon）,TheMATLABSearchPath,EnteranameattheMATLABpromptLookforthenameasavariableChecktoseeifitisabuilt-infunctionorcommandChecktoseeifitisanM-fileinthecurrentdirectoryChecktoseeifitisanM-fileinanydirectoryinthesearchpath,TheMATLABSearchPath,ProgrammingPitfallsNeveruseavariablewiththesamenameasaMATLABfunctionorcommandNevercreateanM-filewiththesamenameasaMATLABfunctionorcommandExamineandmodifysearchpath“File/SetPath”,editpath,pathtoolpathcommand,UsingMATLABasaScratchpad,+,-,*,/,Forexampler=0.1;

l=0.5;

V=A*l;

A=pi*r2;

V=A*lV=0.0157,2022/10/14,MathematicalModeling,24,MATLAB常用数学函数

（1）,三角函数和双曲函数,2022/10/14,MathematicalModeling,25,MATLAB常用数学函数

（2）,指数函数,取整函数和求余函数,2022/10/14,MathematicalModeling,26,MATLAB常用数学函数（3）,矩阵变换函数,复数函数,2022/10/14,MathematicalModeling,27,MATLAB常用数学函数（4）,矩阵函数,2022/10/14,MathematicalModeling,28,MATLAB常用数学函数（5）,其他函数,Homework,Quiz1.1Exercises1.1,1.4,MATLABBasics,MATLABBasics,Aprogramcanbeinputcommandbycommandusingthecommandline（linesstartingwith“”ontheMATLABdesktop）asaseriesofcommandsusingafile（aspecialfilecalledM-file）Ifacommandisfollowedbyasemicolon（;

）,resultofthecomputationisnotshownonthecommandwindow,MATLABBasics:

Variables,Variableisanamegiventoareservedlocationinmemoryclass_code=111;

number_of_students=65;

name=SichuanNormalUniversity;

radius=5;

area=pi*radius2;

MATLABBasics:

Variables,UsemeaningfulnamesforvariablesMATLABvariablenamesmustbeginwithalettercancontainanycombinationofletters,numbersandunderscore（_）mustbeuniqueinthefirst31charactersMATLABiscasesensitive:

“name”,“Name”and“NAME”areconsidereddifferentvariablesNeveruseavariablewiththesamenameasaMATLABcommandNamingconvention:

uselowercaseletters,MATLABBasics:

Arrays,Thefundamentalunitofdataisarrayscalarvaluevectormatrix,MATLABBasics:

InitializingVariables,Initializationusingassignmentstatementsx=5x=5y=x+1y=6vector=1234vector=1234,matrix=123;

456matrix=123456matrix=123;

45?

Errora=5（2+4）a=56,MATLABBasics:

InitializingVariables,Initializationusingshortcutstatementscolonoperatorfirst:

increment:

lastx=1:

2:

10x=13579y=0:

0.1:

0.5y=00.10.20.30.40.5,MATLABBasics:

InitializingVariables,transposeoperatoru=1:

3u=123v=uuv=112233,v=u;

uv=123123,MATLABBasics:

InitializingVariables,Initializationusingbuilt-infunctionszeros（）x=zeros

（2）x=0000z=zeros（2,3）z=000000ones（）,size（）,length（）,y=zeros（1,4）y=0000t=zeros（size（z）t=000000,MATLABBasics:

InitializingVariables,Initializationusingkeyboardinputinput（）value=input（Enteraninputvalue:

）Enteraninputvalue:

1.25value=1.2500name=input（Whatisyourname:

s）Whatisyourname:

Selimname=Selim,MATLABBasics:

InitializingVariables,Initializationc（:

:

1）=123;

456;

c（:

2）=789;

10111