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SimulationandModeling（仿真与建模）ObjectivesIntroductionComputationalModeling:IntroductiontoSystemsandModelsIntroductiontoSystemsandModels(continued)IntroductiontoSystemsandModels(continued)IntroductiontoSystemsandModels(continued)Figure12.1UsingaSimulationinanInteractiveDesignEnvironmentComputationalModels,Accuracy,andErrorsTobuildamodelIncludeimportantfactorsthatactonthesystemOmitunimportantfactorsthatonlymakethemodelhardertobuild,understand,andsolveComputationalModels,Accuracy,andErrors(continued)AnExampleofModelBuildingAnExampleofModelBuilding(continued)ExampleModelsConway’sGameofLifeConway’sGameofLifeIsitPossible?WhatadditionalHypotheses?AnExampleofModelBuilding(Restaurant)Figure12.3SystemtoBeModeledAnExampleofModelBuilding(continued)Figure12.4AlgorithmforNewCustomerArrivalAnExampleofModelBuilding(continued)StatisticalDistributionofCustomerServiceTimeFigure12.6AlgorithmforGeneratingRandomNumbersThatFollowtheDistributionGiveninFigure12.5Figure12.7AlgorithmforCustomerDepartureEventAnExampleofModelBuilding(continued)AnExampleofModelBuilding(continued)Figure12.8TheMainAlgorithmofOurSimulationModelRunningtheModelandVisualizingResultsRunningtheModelandVisualizingResults(continued)OutputofacomputermodelcanberepresentedvisuallyusingAtwo-dimensionalgraphAthree-dimensionalimageVisualrepresentationofdatahelpsidentifyimportantfeaturesofthemodel’soutputFigure12.9UsingaTwo-DimensionalGraphtoDisplayOutputFigure12.10:UsingaTwo-DimensionalGraphtoDisplayandCompareTwoDataValuesFigure12.11Three-DimensionalImageofaRegionoftheEarth’sSurfaceFigure12.12Three-DimensionalModelofaMethylNitriteMoleculeFigure12.13VisualizationofGasDispersionImageanimationOneofthemostpowerfulandusefulformsofvisualizationShowshowmodel’soutputchangesovertimeCreatedusingmanyimages,eachshowingsystemstateataslightlylaterpointintimeFigure12.14UseofAnimationtoModelOzoneLayersintheAtmosphereSummarySummary(continued)
