資源描述：
《2012 MCM北美數(shù)學建模A題論文》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在教育資源-天天文庫。
1、Page19MathematicalmodelresearchonthenatureofteatreesForofficeuseonlyT1________________T2________________T3________________T4________________TeamControlNumber13499?ProblemChosenAForofficeuseonlyF1________________F2________________F3________________F4________________2012MathematicalCo
2、ntestinModeling(MCM)SummarySheetAbstract:Tobetterexpressatree’scharacteristic,furthermoretosolvesomeactualproblems.ThispaperusedLsystemfractalmodelandForestgapmodeltobuildanaccurateandcompletemodeltodescribeatreepositionparameterandshapeparameter.Ourmodelisthreesteps:theintensityoft
3、heconditionofthethreemodelgraduallydiminish.Firstmodel,weuseLsystemtocreateatreewithoutleaves.Wethenaddleafinformationtothefirstonewhichmadeitacompletetree.Inmodel3,weuseforestgapmodeltoaddsomemoreenvironmentalfactors,toamendthesimulationtomakeitmorereal.Totestifythismodelaccuracy,w
4、echoseteatreesfudingdabaiwhicharefromHunanprovincegrownupfromgarden13yearsoldcanopyasourresearchobjectandtestifythethreemodels,meanwhilecalculatedispersioncoefficientandthedifference.Fromthedispersionwecanknowthatthemodelisalright.Afterbuildingthemodel,wedidsomeresearchonthetree,use
5、mathematicaldeformationtofindtherelationsbetweenthevariouspartsofthetree,untilatlastgettheweightofthetree.Thispaperspecializedinlayermodelingconstructing,reducingtheconstraints,takinggoodadvantageofmatlabandspss,exceletc.tograduallytoclosetoreality.Keywords:Lsystemfractalmodel,fores
6、tgapmodel,significanceleveltestify,Layermodeling19Page19Contents1.Introduction...................................................................................................................................................22.AnalysisoftheProblem…..................................
7、..................................................................................23.Models……………..........................................................................................................................................44.Conclusions...................................
8、...................
