matlab快速入门 15.docx
- 文档编号:4310161
- 上传时间:2022-11-29
- 格式:DOCX
- 页数:13
- 大小:78.48KB
matlab快速入门 15.docx
《matlab快速入门 15.docx》由会员分享,可在线阅读,更多相关《matlab快速入门 15.docx(13页珍藏版)》请在冰豆网上搜索。
matlab快速入门15
1.5MATLAB的在线帮助系统
MATLAB提供了大量的函数和命令,如果想记住所有的函数及其调用格式几乎是不可能的。
为此,MATLAB提供了非常方便的在线帮助的功能,用户可以容易地获得对想查询的各个函数的信息。
在线查询可以由命令help来获得。
1.5.1查询某一命令或函数
如果你要对某一命令或函数进行查询,直接在help后跟上该命令或函数名即可,即用下列程序
help函数(命令)名
可得到帮助,例如
》helpfeval
屏幕显示内容如下:
FEVALExecutefunctionspecifiedbystring.
IfFisastringcontainingthenameofafunction(usually
definedbyanM-file),thenFEVAL(F,x1,...,xn)evaluates
thatfunctionatthegivenarguments.
Forexample,F='foo',FEVAL(F,9.64)isthesameasfoo(9.64).
FEVALisusuallyusedinsidefunctionswhichhavethenamesof
otherfunctionsasarguments.ExamplesincludeFZEROandEZPLOT.
[y1,..,yn]=FEVAL(F,x1,...,xn)returnsmultipleoutputarguments.
Withinmethodsthatoverloadbuilt-infunctions,use
BUILTIN(FUN,...)toexecutetheoriginalbuilt-infunction.
SeealsoBUILTIN.
Overloadedmethods
helpinline/feval.m
1.5.2查询MATLAB所有的主题
单独使用help命令,MATLAB将列出所有的主题。
即
》help
屏幕显示内容如下:
HELPtopics:
matlab\general-Generalpurposecommands.
matlab\ops-Operatorsandspecialcharacters.
matlab\lang-Programminglanguageconstructs.
matlab\elmat-Elementarymatricesandmatrixmanipulation.
matlab\elfun-Elementarymathfunctions.
matlab\specfun-Specializedmathfunctions.
matlab\matfun-Matrixfunctions-numericallinearalgebra.
matlab\datafun-DataanalysisandFouriertransforms.
matlab\polyfun-Interpolationandpolynomials.
matlab\funfun-FunctionfunctionsandODEsolvers.
matlab\sparfun-Sparsematrices.
matlab\graph2d-Twodimensionalgraphs.
matlab\graph3d-Threedimensionalgraphs.
matlab\specgraph-Specializedgraphs.
matlab\graphics-HandleGraphics.
matlab\uitools-Graphicaluserinterfacetools.
matlab\strfun-Characterstrings.
matlab\iofun-Fileinput/output.
matlab\timefun-Timeanddates.
matlab\datatypes-Datatypesandstructures.
matlab\winfun-WindowsOperatingSystemInterfaceFiles(DDE/ActiveX)
matlab\demos-Examplesanddemonstrations.
toolbox\runtime-MATLABRuntimeServerDevelopmentKit
rtw\windows-RealTimeWindowsTarget.
daq\daq-DataAcquisitionToolbox.
daq\daqdemos-DataAcquisitionToolbox-DataAcquisitionDemos.
toolbox\dials-Dials&GaugesBlockset
toolbox\rptgenext-SimulinkReportGenerator
toolbox\rptgen-MATLABReportGenerator
database\database-DatabaseToolbox.
database\dbdemos-DatabaseToolboxDemonstrationFunctions.
database\vqb-VisualQueryBuilderfunctions.
powersys\powerdemo-PowerSystemBlocksetDemos.
powersys\powersys-PowerSystemBlockset
toolbox\compiler-MATLABCompiler(andCompiler1.2.1)
comm\comm-CommunicationsToolbox.
comm\commmasks-CommunicationsToolboxmaskhelperfunctions.
comm\commsfun-CommunicationsToolboxS-functions.
comm\commsim-CommunicationsToolboxSimulinkfiles.
toolbox\symbolic-SymbolicMathToolbox.
nag\nag-NAGFoundationToolbox-Numerical&StatisticalLibrary
nag\examples-NAGFoundationToolbox-Numerical&StatisticalLibrary
map\map-MappingToolbox
map\mapdisp-MappingToolboxMapDefinitionandDisplay.
map\mapproj-MappingToolboxProjections.
wavelet\wavelet-WaveletToolbox.
wavelet\wavedemo-WaveletToolboxDemos.
toolbox\pde-PartialDifferentialEquationToolbox.
finance\finance-FinancialToolbox.
finance\calendar-FinancialToolboxcalendarfunctions.
finance\findemos-FinancialToolboxdemonstrationfunctions.
finance\finsupport-(Notableofcontentsfile)
lmi\lmictrl-LMIControlToolbox:
ControlApplications
lmi\lmilab-LMIControlToolbox
qft\qft-QFTControlDesignToolbox.
qft\qftdemos-QFTControlDesignToolboxDemos
toolbox\fixpoint-Fixed-PointBlockset
fixpoint\fxpdemos-Fixed-PointBlocksetDemos
fixpoint\obsolete-ObsoleteFixed-PointBlockset
dspblks\dspblks-DSPBlockset.
dspblks\dspmex-DSPBlocksetS-Functions.
dspblks\dspdemos-DSPBlocksetdemonstrationsandexamples.
dspblks\dspmasks-DSPBlocksetmaskhelperfunctions.
fuzzy\fuzzy-FuzzyLogicToolbox.
fuzzy\fuzdemos-FuzzyLogicToolboxDemos.
mpc\mpccmds-ModelPredictiveControlToolbox.
mpc\mpcdemos-ModelPredictiveControlToolbox
fdident\fdident-FrequencyDomainIdentificationToolbox.
fdident\fddemos-DemonstrationsfortheFDIDENTToolbox
hosa\hosa-Higher-OrderSpectralAnalysisToolbox.
hosa\hosademo-Higher-OrderSpectralAnalysisToolbox-Demosuite
toolbox\stats-StatisticsToolbox.
toolbox\ncd-NonlinearControlDesignBlockset
images\images-ImageProcessingToolbox.
images\imdemo-ImageProcessingToolbox---demosandsampleimages
nnet\nnet-NeuralNetworkToolbox.
nnet\nndemos-NeuralNetworkDemonstrations.
nnet\nnutils-(Notableofcontentsfile)
nnet\nnobsolete-(Notableofcontentsfile)
mutools\commands-Mu-AnalysisandSynthesisToolbox.
mutools\subs-Mu-AnalysisandSynthesisToolbox.
signal\signal-SignalProcessingToolbox.
signal\siggui-SignalProcessingToolboxGUI
signal\sigdemos-SignalProcessingToolboxDemonstrations
toolbox\splines-SplineToolbox.
toolbox\optim-OptimizationToolbox.
toolbox\robust-RobustControlToolbox.
toolbox\ident-SystemIdentificationToolbox.
toolbox\control-ControlSystemToolbox.
control\ctrlguis-ControlSystemToolbox--GUIsupportfunctions.
control\obsolete-ControlSystemToolbox--obsoletecommands.
toolbox\rtw-Real-TimeWorkshop
rtw\rtwdemos-(Notableofcontentsfile)
stateflow\sfdemos-Stateflowdemonstrationsandsamples.
toolbox\sb2sl-SystemBuildtoSimulinkTranslator
stateflow\stateflow-Stateflow
simulink\simulink-Simulink
simulink\blocks-Simulinkblocklibrary.
simulink\simdemos-Simulink3demonstrationsandsamples.
simulink\dee-DifferentialEquationEditor
toolbox\tour-MATLABTour
MATLABR11\work-(Notableofcontentsfile)
toolbox\local-Preferences.
Formorehelpondirectory/topic,type"helptopic".
1.5.3查询MATLAB所有的演示主题
使用命令
》helpdemos
将给出所有的演示主题,即
Examplesanddemonstrations.
Type'demo'atthecommandlinetobrowsemoredemosof
MATLAB,theToolboxes,andSIMULINK.
MATLAB/Introduction.
demo-BrowsedemosforMATLAB,Toolboxes,andSIMULINK
MATLAB/Matrices.
intro-IntroductiontobasicmatrixoperationsinMATLAB.
inverter-Demonstratetheinversionofamatrix.
buckydem-ConnectivitygraphoftheBuckminsterFullergeodesicdome.
sparsity-Demonstrateeffectofsparsityorderings.
matmanip-Introductiontomatrixmanipulation.
eigmovie-Symmetriceigenvaluemovie.
rrefmovie-ComputationofReducedRowEchelonForm.
delsqdemo-FinitedifferenceLaplacianonvariousdomains.
sepdemo-Separatorsforafiniteelementmesh.
airfoil-DisplaysparsematrixfromNASAairfoil.
eigshow-Graphicaldemonstrationofmatrixeigenvalues.
svdshow-Graphicaldemonstrationofmatrixsingularvalues.
MATLAB/Numerics.
funfuns-Demonstratefunctionsthatoperateonotherfunctions.
fitdemo-Nonlinearcurvefitwithsimplexalgorithm.
sunspots-FFT:
theansweris11.08,whatisthequestion?
e2pi-2Dvisualsolutions:
Whichisgreater,e^piorpi^e?
bench-MATLABBenchmark.
fftdemo-UseofthefastfiniteFouriertransform.
census-TrytopredicttheUSpopulationintheyear2000.
spline2d-DemonstrateGINPUTandSPLINEintwodimensions.
lotkademo-Anexampleofordinarydifferentialequationsolution.
quaddemo-Adaptivequadrature.
zerodemo-Zerofindingwithfzero.
fplotdemo-Plotafunction.
quake-LomaPrietaEarthquake.
MATLAB/Visualization.
graf2d-2DPlots:
DemonstrateXYplotsinMATLAB.
graf2d2-3DPlots:
DemonstrateXYZplotsinMATLAB.
grafcplx-DemonstratecomplexfunctionplotsinMATLAB.
lorenz-PlottheorbitaroundtheLorenzchaoticattractor.
imageext-Imagecolormaps:
changingandrotatingcolormaps.
xpklein-Kleinbottledemo.
vibes-Vibrationmovie:
VibratingL-shapedmembrane.
xpsound-Visualizingsound:
DemonstrateMATLAB'ssoundcapability.
imagedemo-DemonstrateMATLAB'simagecapability.
penny-Severalviewsofthepennydata.
earthmap-ViewEarth'stopography.
xfourier-GraphicdemoofFourierseriesexpansion.
colormenu-Selectcolormap.
cplxdemo-Mapsoffunctionsofacomplexvariable.
MATLAB/Language.
xplang-IntroductiontotheMATLABlanguage.
hndlgraf-DemonstrateHandleGraphicsforlineplots.
graf3d-DemonstrateHandleGraphicsforsurfaceplots.
hndlaxis-DemonstrateHandleGraphicsforaxes.
MATLAB/ODESuite.
odedemo-DemofortheODEsuiteintegrators.
a2ode-Stiffproblem,linearwithrealeigenvalues(A2ofEHL).
a3ode-Stiffproblem,linearwithrealeigenvalues(A3ofEHL).
b5ode-Stiffproblem,linearwithcomplexeigenvalues(B5ofEHL).
ballode-EquationsofmotionforabouncingballusedbyBALLDEMO.
besslode-Bessel'sequationoforder0usedbyBESSLDEMO.
brussode-Stiffproblemmodellingachemicalreaction(Brusselator).
buiode-StiffproblemwithanalyticalsolutionduetoBui.
chm6ode-StiffproblemCHM6fromEnrightandHull.
chm7ode-StiffproblemCHM7fromEnrightandHull.
chm9ode-StiffproblemCHM9fromEnrightandHull.
d1ode-Stiffproblem,nonlinearwithrealeigenvalues(D1ofEHL).
fem1ode-Stiffproblemwithatime-dependentmassmatrix.
fem2ode-Stiffproblemwithatime-independentmassmatrix.
gearode-StiffproblemduetoGearasquotedbyvanderHouwen.
hb1ode-Stiffproblem1ofHindmarshandByrne.
hb2ode-Stiffproblem2ofHindmarshandByrne.
hb3ode-Stiffproblem3ofHindmarshandByrne.
orbitode-Restricted3bodyproblemusedbyORBITDEMO.
orbt2ode-Non-stiffproblemD5ofHulletal.
rigidode-Eulerequationsofarigidbodywithoutexternalforces.
sticode-Aspring-drivenmassstucktosurface,usedbySTICDEMO.
vdpode-ParameterizablevanderPolequation(stiff
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- matlab快速入门 15 matlab 快速 入门