介绍数学建模英语演讲.ppt

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1、→Mathematicalmodeling(数学建模）WhatistheMathematicalmodelingWhatiscalled:MathematicalmodelingWherearefrom:themathinthelifeWhatcando:SolvingtheproblemsinreallifewithamathematicallanguageIntroductionThemathematicalmodelingrequiresevensteps,ModelpreparationModelAssumptionsModelb

2、uildingModelsolutionModelanalysisModeltestModelapplicationHowtodoitModelpreparationModelAssumptionsModelbuildingModelsolutionModelanalysisModeltestModelapplicationApplicationNowatAandBpoints,wehaveatotalof100unitsofsteelthatneedstobetransportedtoCandDpoints.TheEpointisatr

3、ansferstation.Thepriceofthetransporthasalreadybeenmarkedonthemap,andnowweneedatransportschemewiththelowestprice.ExampleoneACEDB60unitsneeded90unitsneeded$700/unit￥300/unit50unitsmax$900/unit￥400/unit50unitsmax￥200/unit50unitsmax￥400/unit50unitsmax70unitsproduced80unitspro

4、ducedExampleoneWecanuseExceltodesignminimumcostplan.Aswecanseefromtheleftpicture,usingsoftwarecanhelpussolveproblemsquickly.Goodmethodscansaveusalotoftime.ExampletwoTherearehavingtenbirdsinthistree.Ifapersonshootsabird,howmanyleftbirdsonit.It’salsoaproblemofmathematicalmo

5、deling.Buttheanswerisn’timportant,theimportantthingistheprocess.BiggodsayIsitasilentshotgun?noHowbigisthesoundofthegunIsthisbirdreallydead80dbIamsureIsthereabirdinthecage?noArethereanydisabledbirdsnoIsthereapregnantbird？noTheremustbenobirds.Considertheproblemfromdifferent

6、anglesanddoeverythingpossible,whichiscalledthemasterofmathematicalmodeling.Whenyouaremodelinginmath,Themethodyouuseisthelowerlimit,andtheheightofyourthinkingwhensolvingproblemsistheupperlimit.yourthinkingyourmethodThankyouforyourlisten