What Is Optimization Toolbox?

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fsolveNonlEqnAlgorithmSpecify one of the following algorithms forsolving nonlinear equations:• 'dogleg' — Trust-region dogleg algorithm(default)• 'lm' — Levenberg-MarquardtLineSearchType• 'gn' — Gauss-NewtonLine search algorithm choice. This optionapplies to the 'lm' (Levenberg-Marquardt)and 'gn' (Gauss-Netwton) algorithms.Examples Example 1This example finds a zero of the system of two equations and twounknowns:You want to solve the following system for xstarting at x0 = [-5 -5].First, write an M-file that computes F, the values of the equations at x.function F = myfun(x)F = [2*x(1) - x(2) - exp(-x(1));-x(1) + 2*x(2) - exp(-x(2))];Next, call an optimization routine.x0 = [-5; -5];% Make a starting guess at the solutionoptions=optimset('Display','iter'); % Option to display output8-116
fsolve[x,fval] = fsolve(@myfun,x0,options)% Call optimizerAfter 33 function evaluations, a zero is found.Norm of First-order Trust-regionIteration Func-count f(x) step optimality radius0 3 23535.6 2.29e+004 11 6 6001.72 1 5.75e+003 12 9 1573.51 1 1.47e+003 13 12 427.226 1 388 14 15 119.763 1 107 15 18 33.5206 1 30.8 16 21 8.35208 1 9.05 17 24 1.21394 1 2.26 18 27 0.016329 0.759511 0.206 2.59 30 3.51575e-006 0.111927 0.00294 2.510 33 1.64763e-013 0.00169132 6.36e-007 2.5<strong>Optimization</strong> terminated successfully:First-order optimality is less than options.TolFunx =0.56710.5671fval =1.0e-006 *-0.4059-0.4059Example 2Find a matrix x that satisfies the equation8-117
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Optimization Toolbox 3User’s Guid
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Revision HistoryNovember 1990 First
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Acknowledgments
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Nonlinear Equations with Finite-Dif
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Quadratic Programming (QP) Subprobl
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Specifying the Options ............
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xivContents
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1 Getting StartedWhat Is Optimizati
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1 Getting StartedOptimization Examp
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1 Getting Started[x, fval] =lsqlin(
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2 TutorialLarge-Scale Examples (p.
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2 TutorialMinimization (Continued)T
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2 TutorialUsing the Optimization Fu
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2 TutorialA choice of line search s
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2 TutorialThe tutorial uses the fun
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2 Tutorialfunction evaluations. See
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2 TutorialTo restrict x inEquation2
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2 Tutorialceq=[];DCeq = [ ];G conta
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2 TutorialEquality Constrained Exam
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2 Tutorialfunction y = findzero(b,
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2 Tutorial3.7081Sharing Variables U
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2 Tutorialcomponents.');end% Evalua
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2 TutorialThe example produces the
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2 TutorialClosed-Loop ResponseThe p
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2 Tutorialfunction [Kp,Ki,Kd] = run
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2 TutorialThe resulting closed-loop
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2 Tutorialcalling the simulation tw
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2 TutorialThe last value shown in t
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2 TutorialStep 1: Write an M-file f
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2 TutorialLarge-Scale Examples•
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2 TutorialNote The following table
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2 TutorialLarge-Scale Problem Cover
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2 Tutorialoptimset('Display','iter'
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2 Tutorialeither) then, in this pro
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2 TutorialNonlinear Least-Squares w
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2 TutorialThe problem is to find x
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Large-Scale Examplesto zero (for fm
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Large-Scale Examples024681012141618
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Large-Scale Examplesfval =270.4790o
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Large-Scale Examplesans =1.1885e-01
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Large-Scale ExamplesW = Hinfo*Y - V
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Large-Scale Exampleswere not the sa
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Large-Scale Examplestradeoff is ben
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Large-Scale Examplesfunction W = qp
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Large-Scale Examples% RUNQPBOX4PREC
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Large-Scale Examplesalgorithm: 'lar
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Large-Scale Examplescgiterations: 0
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Large-Scale Examplesdoes not give a
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Default Options SettingsDetermining
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Displaying Iterative OutputDisplayi
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Displaying Iterative Outputbintprog
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Displaying Iterative OutputfsolveTh
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Displaying Iterative Outputlsqnonli
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Calling an Output Function Iterativ
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Optimizing Anonymous Functions Inst
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Optimizing Anonymous Functions Inst
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Typical Problems and How to Deal wi
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Typical Problems and How to Deal wi
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3Standard AlgorithmsStandard Algori
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Multiobjective Optimization (p. 3-4
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Demos of Medium-Scale MethodsDemos
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Unconstrained OptimizationFigure 3-
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Unconstrained Optimizationvariables
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Quasi-Newton ImplementationQuasi-Ne
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Quasi-Newton Implementationvalues o
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Quasi-Newton ImplementationMixed Cu
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Quasi-Newton ImplementationCase 4.3
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Least-Squares OptimizationIn proble
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Least-Squares OptimizationLevenberg
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Least-Squares OptimizationThe linea
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Nonlinear Systems of EquationsNonli
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Nonlinear Systems of Equationsand s
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Constrained OptimizationConstrained
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Constrained OptimizationGiven the p
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Constrained OptimizationUpdating th
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Constrained Optimizationis updated
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Constrained OptimizationInitializat
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Constrained OptimizationSimplex Alg
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Constrained Optimization3 Updates t
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Multiobjective OptimizationMultiobj
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Multiobjective OptimizationIn the t
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Multiobjective OptimizationThe afor
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Multiobjective OptimizationWhat is
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Multiobjective Optimization(3-51)wh
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Selected BibliographySelected Bibli
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Selected Bibliography[24] Han, S.P.
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4Large-Scale AlgorithmsLarge-Scale
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Trust-Region Methods for Nonlinear
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Trust-Region Methods for Nonlinear
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Preconditioned Conjugate GradientsP
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Linearly Constrained ProblemsLinear
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Linearly Constrained ProblemsThe sc
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Quadratic ProgrammingQuadratic Prog
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Large-Scale Linear ProgrammingLarge
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Large-Scale Linear ProgrammingThe a
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Large-Scale Linear ProgrammingWhile
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Selected Bibliography[11] Zhang, Y.
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5Optimization ToolGetting Started w
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Getting Started with the Optimizati
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Selecting a SolverSelecting a Solve
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Defining the ProblemDefining the Pr
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Defining the ProblemFunction to Min
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Defining the ProblemConstraintsLine
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Defining the ProblemM-file, or as a
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Defining the ProblemBounds are lowe
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Defining the Problemfseminf Problem
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Defining the ProblemLinear System o
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Defining the ProblemConstraintsBoun
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Defining the ProblemConstraintsWith
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Running a Problem in the Optimizati
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Specifying the Options• Xtoleranc
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Specifying the Optionsoption to a d
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Specifying the OptionsThe following
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Specifying the OptionsMultiobjectiv
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Specifying the OptionsPlot Function
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Specifying the Options• final —
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Importing and Exporting Your WorkIm
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Importing and Exporting Your WorkYo
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Optimization Tool ExamplesOptimizat
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Optimization Tool Examples6 In the
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Optimization Tool Examplesmax Line
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Optimization Tool ExamplesThe Aeq a
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6Argument and OptionsReferenceThis
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Function ArgumentsInput Arguments (
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Function ArgumentsInput Arguments (
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Function ArgumentsOutput Arguments
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Optimization OptionsOptimization Op
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Optimization Optionsspecifies Outpu
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Optimization OptionsoptimValues Fie
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Optimization OptionsStopping an Opt
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7Functions — By CategoryMinimizat
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Least Squares (Curve Fitting)Least
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Functions — AlphabeticalList8
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intprogx = bintprog(f,A,b,Aeq,Beq,x
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intprogBranchStrategyStrategy the a
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intprog• Verifies that no better
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intprogExampleTo minimize the funct
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colorPurposeSyntaxDescriptionColumn
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fgoalattainx = fgoalattain(fun,x0,g
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fgoalattainfunThefunctiontobeminimi
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fgoalattainfunction [c,ceq,GC,GCeq]
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fgoalattainattainfactorexitflaglamb
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fgoalattainFunValCheckGoalsExactAch
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fgoalattainExamplesConsider a linea
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fgoalattainof overattainment is met
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fgoalattainLimitationsReferencesThe
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fminbndInputArguments“Function Ar
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fminbndPlotFcnsPlots various measur
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fminbndLimitationsReferencesThe fun
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fminconx = fmincon(fun,x0,A,b) star
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fminconfunThe function to be minimi
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fminconthen the function nonlcon mu
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fmincongradhessianlambdaoutputGradi
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fminconthe values of these fields i
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fminconHessianHessMultIf 'on', fmin
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fminconPrecondBandWidth Upper bandw
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fminconSince both constraints are l
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fmincon• A dense (or fairly dense
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fminconReferences[1] Coleman, T.F.
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fminimaxx = fminimax(fun,x,A,b,Aeq,
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fminimaxfunThe function to be minim
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fminimaxIf nonlcon returns a vector
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fminimaxlambdamaxfvaloutputStructur
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fminimaxMeritFunctionMinAbsMaxOutpu
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Page 355 and 356: fminsearchOutputFcnPlotFcnsTolFunSp
Page 357 and 358: fminsearcha = sqrt(2);banana = @(x)
Page 359 and 360: fminuncPurposeEquationFind minimum
Page 361 and 362: fminuncfunThefunctiontobeminimized.
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Page 371 and 372: fminuncx0 = [1,1];[x,fval] = fminun
Page 373 and 374: fminunc“Trust-Region Methods for
Page 375 and 376: fseminfPurposeEquationFind minimum
Page 377 and 378: fseminf“Avoiding Global Variables
Page 379 and 380: fseminfoptions“Options” on page
Page 381 and 382: fseminflambdaoutput5 Magnitude of d
Page 383 and 384: fseminfOutputFcnPlotFcnsRelLineSrch
Page 385 and 386: fseminfSecond, write an M-file, myc
Page 387 and 388: fseminfThe plot command inside 'myc
Page 389 and 390: fseminfThe goal was to minimize the
Page 391 and 392: fsolvePurposeEquationSolve system o
Page 393 and 394: fsolvefunThe nonlinear system of eq
Page 395 and 396: fsolvefuncCountalgorithmcgiteration
Page 397 and 398: fsolvePlotFcnsTolFunPlots various m
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Page 403 and 404: fsolveYoucanformulateandsolvethepro
Page 405 and 406: fsolveLimitationsThe function to be
Page 407 and 408: fzeroPurposeSyntaxDescriptionFind r
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Page 411 and 412: fzerowrite an M-file called f.m.fun
Page 413 and 414: fzmultPurposeSyntaxMultiplication w
Page 415 and 416: linprogPurposeEquationSolve linear
Page 417 and 418: linproglambdaoutput-2 No feasible p
Page 419 and 420: linprogsubject toFirst, enter the c
Page 421 and 422: linprogDiagnosticsLarge-Scale Optim
Page 423 and 424: linprogthe primal objective < -1e+1
Page 425 and 426: lsqcurvefitPurposeEquationSolve non
Page 427 and 428: lsqcurvefitfunThe function you want
Page 429 and 430: lsqcurvefitoutputupperUpper bounds
Page 431 and 432: lsqcurvefitJacobianMaxFunEvalsMaxIt
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Page 435 and 436: lsqcurvefitNote that at the time th
Page 437 and 438: lsqcurvefitof J with many nonzeros,
Page 439 and 440: lsqlinPurposeEquationSolve constrai
Page 441 and 442: lsqlinlambdaoutput3 Change in the r
Page 443 and 444: lsqlinDiagnosticsDisplayMaxIterTypi
Page 445 and 446: lsqlinPrecondBandWidthUpper bandwid
Page 447 and 448: lsqlinNotesFor problems with no con
Page 449 and 450: lsqlinReferences[1] Coleman, T.F. a
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lsqnonlinreturn a vector of values
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lsqnonlinOutputArguments“Function
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lsqnonlinalgorithm. See “Optimiza
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lsqnonlinJacobMultFunction handle f
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lsqnonlinfor(that is, F should have
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lsqnonlinand Requirements on page 2
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lsqnonnegPurposeEquationSolve nonne
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lsqnonneglambdaoutputVector contain
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optimgetPurposeSyntaxDescriptionExa
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optimsetIn the following lists, val
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optimsetLineSearchType'cubicpoly' |
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optimtoolPurposeSyntaxDescriptionTo
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quadprogPurposeEquationSolve quadra
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quadproglambdaoutput3 Change in the
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quadprogLargeScaleUse large-scale a
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quadprogTolPCGTermination tolerance
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quadprogNotesIn general quadprog lo
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quadprogWhen the equality constrain
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IndexIndex ε-Constraint method 3-4
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Indexinfeasible solution warninglin
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Indexdescriptions 6-8possible value
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