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E154V.KhaymsIntroductiontoEngineeringFall2003MathematicsMATLABTutorial,Part1MATLABisahigh-performancelanguagefortechnicalcomputing.Itintegratescomputation,visualization,andprogramminginaneasy-to-useenvironmentwhereproblemsandsolutionsareexpressedinfamiliarmathematicalnotation.Typicalusesinclude:MathandcomputationAlgorithmdevelopmentModeling,simulation,andprototypingDataanalysis,exploration,andvisualizationScientificandengineeringgraphicsApplicationdevelopment,includingGraphicalUserInterfacebuildingMATLABisaninteractivesystemwhosebasicdataelementisanarraythatdoesnotrequiredimensioning.Thisallowsyoutosolvemanytechnicalcomputingproblems,especiallythosewithmatrixandvectorformulations,inafractionofthetimeitwouldtaketowriteaprograminascalarnoninteractivelanguagesuchasCorFortran.MATLABhasevolvedoveraperiodofyearswithinputfrommanyusers.Inuniversityenvironments,itisthestandardinstructionaltoolforintroductoryandadvancedcoursesinmathematics,engineering,andscience.Inindustry,MATLABisthetoolofchoiceforhigh-productivityresearch,development,andanalysis.MATLABfeaturesafamilyofapplication-specificsolutionscalledtoolboxes.VeryimportanttomostusersofMATLAB,toolboxesallowyoutolearnandapplyspecializedtechnology.ToolboxesarecomprehensivecollectionsofMATLABfunctions(M-files)thatextendtheMATLABenvironmenttosolveparticularclassesofproblems.Areasinwhichtoolboxesareavailableincludesignalprocessing,controlsystems,neuralnetworks,statistics,fuzzylogic,wavelets,partialdifferentialequations,simulation,andmanyothers.MATLABisavailableonmanyworkstationsthroughoutcampus.TostartMATLABonaWindowssystem,logontoanyoftheworkstationsanddouble-clickontheMATLABicon.OnaUNIXsystem,typematlabattheoperatingsystemprompt.AcommandwindowwillappearwiththeMATLABprompt>>(orEDU>>inthestudentedition)indicatingthattheprogramisreadytoreceiveinstructions.BasicoperationsUsingMATLABasacalculator>>(2+3)*4/5ans=4Definingscalarvariables>>a=2a=2>>b=3b=3>>c=a+bc=5>>c=
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