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Table of contents
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Quick Start Guides
Example Tour
Reference Manual
AMPL-Gurobi Guide
Remote Services
Cloud Guide
C API Overview
C API Details
Environment Creation and Destruction +
GRBloadenv
GRBemptyenv
GRBstartenv
GRBloadclientenv
GRBloadcloudenv
GRBfreeenv
GRBgetconcurrentenv
GRBgetmultiobjenv
GRBdiscardconcurrentenvs
GRBdiscardmultiobjenvs
Model Creation and Modification +
GRBloadmodel
GRBnewmodel
GRBcopymodel
GRBaddconstr
GRBaddconstrs
GRBaddgenconstrXxx
GRBaddgenconstrMax
GRBaddgenconstrMin
GRBaddgenconstrAbs
GRBaddgenconstrAnd
GRBaddgenconstrOr
GRBaddgenconstrIndicator
GRBaddgenconstrPWL
GRBaddgenconstrPoly
GRBaddgenconstrExp
GRBaddgenconstrExpA
GRBaddgenconstrLog
GRBaddgenconstrLogA
GRBaddgenconstrPow
GRBaddgenconstrSin
GRBaddgenconstrCos
GRBaddgenconstrTan
GRBaddqconstr
GRBaddqpterms
GRBaddrangeconstr
GRBaddrangeconstrs
GRBaddsos
GRBaddvar
GRBaddvars
GRBchgcoeffs
GRBdelconstrs
GRBdelgenconstrs
GRBdelq
GRBdelqconstrs
GRBdelsos
GRBdelvars
GRBsetobjectiven
GRBsetpwlobj
GRBupdatemodel
GRBfreemodel
GRBXaddconstrs
GRBXaddrangeconstrs
GRBXaddvars
GRBXchgcoeffs
GRBXloadmodel
Model Solution +
GRBoptimize
GRBoptimizeasync
GRBcomputeIIS
GRBfeasrelax
GRBfixmodel
GRBreset
GRBsync
Model Queries +
GRBgetcoeff
GRBgetconstrbyname
GRBgetconstrs
GRBgetenv
GRBgetgenconstrMax
GRBgetgenconstrMin
GRBgetgenconstrAbs
GRBgetgenconstrAnd
GRBgetgenconstrOr
GRBgetgenconstrIndicator
GRBgetgenconstrPWL
GRBgetgenconstrPoly
GRBgetgenconstrExp
GRBgetgenconstrExpA
GRBgetgenconstrLog
GRBgetgenconstrLogA
GRBgetgenconstrPow
GRBgetgenconstrSin
GRBgetgenconstrCos
GRBgetgenconstrTan
GRBgetjsonsolution
GRBgetpwlobj
GRBgetq
GRBgetqconstr
GRBgetqconstrbyname
GRBgetsos
GRBgetvarbyname
GRBgetvars
GRBsinglescenariomodel
GRBXgetconstrs
GRBXgetvars
Input/Output +
GRBreadmodel
GRBread
GRBwrite
Attribute Management +
GRBgetattrinfo
GRBgetintattr
GRBsetintattr
GRBgetintattrelement
GRBsetintattrelement
GRBgetintattrarray
GRBsetintattrarray
GRBgetintattrlist
GRBsetintattrlist
GRBgetdblattr
GRBsetdblattr
GRBgetdblattrelement
GRBsetdblattrelement
GRBgetdblattrarray
GRBsetdblattrarray
GRBgetdblattrlist
GRBsetdblattrlist
GRBgetcharattrelement
GRBsetcharattrelement
GRBgetcharattrarray
GRBsetcharattrarray
GRBgetcharattrlist
GRBsetcharattrlist
GRBgetstrattr
GRBsetstrattr
GRBgetstrattrelement
GRBsetstrattrelement
GRBgetstrattrarray
GRBsetstrattrarray
GRBgetstrattrlist
GRBsetstrattrlist
GRBgetbatchattrinfo
Parameter Management and Tuning +
GRBtunemodel
GRBgettuneresult
GRBgetdblparam
GRBgetintparam
GRBgetstrparam
GRBsetdblparam
GRBsetintparam
GRBsetstrparam
GRBgetdblparaminfo
GRBgetintparaminfo
GRBgetstrparaminfo
GRBreadparams
GRBwriteparams
Monitoring Progress - Logging and Callbacks +
GRBmsg
GRBsetcallbackfunc
GRBgetcallbackfunc
GRBcbget
GRBversion
Modifying Solver Behavior - Callbacks +
GRBcbcut
GRBcblazy
GRBcbsolution
GRBcbstoponemultiobj
GRBterminate
Batch Requests +
GRBabortbatch
GRBdiscardbatch
GRBfreebatch
GRBgetbatch
GRBgetbatchenv
GRBgetbatchintattr
GRBgetbatchjsonsolution
GRBgetbatchstrattr
GRBoptimizebatch
GRBretrybatch
GRBupdatebatch
GRBwritebatchjsonsolution
Error Handling +
GRBgeterrormsg
Advanced simplex routines +
GRBFSolve
GRBBSolve
GRBBinvColj
GRBBinvRowi
GRBgetBasisHead
C++ API Overview
C++ API Details
GRBEnv +
GRBEnv()
GRBEnv::get()
GRBEnv::getErrorMsg()
GRBEnv::getParamInfo()
GRBEnv::message()
GRBEnv::readParams()
GRBEnv::resetParams()
GRBEnv::set()
GRBEnv::start()
GRBEnv::writeParams()
GRBModel +
GRBModel()
GRBModel::addConstr()
GRBModel::addConstrs()
GRBModel::addGenConstrXxx() +
GRBModel::addGenConstrMax()
GRBModel::addGenConstrMin()
GRBModel::addGenConstrAbs()
GRBModel::addGenConstrAnd()
GRBModel::addGenConstrOr()
GRBModel::addGenConstrIndicator()
GRBModel::addGenConstrPWL()
GRBModel::addGenConstrPoly()
GRBModel::addGenConstrExp()
GRBModel::addGenConstrExpA()
GRBModel::addGenConstrLog()
GRBModel::addGenConstrLogA()
GRBModel::addGenConstrPow()
GRBModel::addGenConstrSin()
GRBModel::addGenConstrCos()
GRBModel::addGenConstrTan()
GRBModel::addQConstr()
GRBModel::addRange()
GRBModel::addRanges()
GRBModel::addSOS()
GRBModel::addVar()
GRBModel::addVars()
GRBModel::chgCoeff()
GRBModel::chgCoeffs()
GRBModel::computeIIS()
GRBModel::discardConcurrentEnvs()
GRBModel::discardMultiobjEnvs()
GRBModel::feasRelax()
GRBModel::fixedModel()
GRBModel::get()
GRBModel::getCoeff()
GRBModel::getCol()
GRBModel::getConcurrentEnv()
GRBModel::getConstrByName()
GRBModel::getConstrs()
GRBModel::getEnv()
GRBModel::getGenConstrXxx() +
GRBModel::getGenConstrMax
GRBModel::getGenConstrMin
GRBModel::getGenConstrAbs
GRBModel::getGenConstrAnd
GRBModel::getGenConstrOr
GRBModel::getGenConstrIndicator
GRBModel::getGenConstrPWL
GRBModel::getGenConstrPoly
GRBModel::getGenConstrExp
GRBModel::getGenConstrExpA
GRBModel::getGenConstrLog
GRBModel::getGenConstrLogA
GRBModel::getGenConstrPow
GRBModel::getGenConstrSin
GRBModel::getGenConstrCos
GRBModel::getGenConstrTan
GRBModel::getGenConstrs()
GRBModel::getJSONSolution()
GRBModel::getMultiobjEnv()
GRBModel::getObjective()
GRBModel::getPWLObj()
GRBModel::getQCRow()
GRBModel::getQConstrs()
GRBModel::getRow()
GRBModel::getSOS()
GRBModel::getSOSs()
GRBModel::getTuneResult()
GRBModel::getVarByName()
GRBModel::getVars()
GRBModel::optimize()
GRBModel::optimizeasync()
GRBModel::optimizeBatch()
GRBModel::presolve()
GRBModel::read()
GRBModel::remove()
GRBModel::reset()
GRBModel::setCallback()
GRBModel::set()
GRBModel::setObjective()
GRBModel::setObjectiveN()
GRBModel::setPWLObj()
GRBModel::singleScenarioModel()
GRBModel::sync()
GRBModel::terminate()
GRBModel::tune()
GRBModel::update()
GRBModel::write()
GRBVar +
GRBVar::get()
GRBVar::index()
GRBVar::sameAs()
GRBVar::set()
GRBConstr –
GRBConstr::get()
GRBConstr::index()
GRBConstr::sameAs()
GRBConstr::set()
GRBQConstr +
GRBQConstr::get()
GRBQConstr::set()
GRBSOS +
GRBSOS::get()
GRBGenConstr +
GRBGenConstr::get()
GRBGenConstr::set()
GRBExpr +
GRBExpr::getValue()
GRBLinExpr +
GRBLinExpr()
GRBLinExpr::addTerms()
GRBLinExpr::clear()
GRBLinExpr::getConstant()
GRBLinExpr::getCoeff()
GRBLinExpr::getValue()
GRBLinExpr::getVar()
GRBLinExpr::operator=
GRBLinExpr::operator+
GRBLinExpr::operator-
GRBLinExpr::operator+=
GRBLinExpr::operator-=
GRBLinExpr::operator*=
GRBLinExpr::remove()
GRBLinExpr::size()
GRBQuadExpr +
GRBQuadExpr()
GRBQuadExpr::addTerm()
GRBQuadExpr::addTerms()
GRBQuadExpr::clear()
GRBQuadExpr::getCoeff()
GRBQuadExpr::getLinExpr()
GRBQuadExpr::getValue()
GRBQuadExpr::getVar1()
GRBQuadExpr::getVar2()
GRBQuadExpr::operator=
GRBQuadExpr::operator+
GRBQuadExpr::operator-
GRBQuadExpr::operator+=
GRBQuadExpr::operator-=
GRBQuadExpr::operator*=
GRBQuadExpr::remove()
GRBQuadExpr::size()
GRBTempConstr
GRBColumn +
GRBColumn()
GRBColumn::addTerm()
GRBColumn::addTerms()
GRBColumn::clear()
GRBColumn::getCoeff()
GRBColumn::getConstr()
GRBColumn::remove()
GRBColumn::size()
GRBCallback +
GRBCallback()
GRBCallback::abort()
GRBCallback::addCut()
GRBCallback::addLazy()
GRBCallback::getDoubleInfo()
GRBCallback::getIntInfo()
GRBCallback::getNodeRel()
GRBCallback::getSolution()
GRBCallback::getStringInfo()
GRBCallback::setSolution()
GRBCallback::stopOneMultiObj() +
GRBCallback::useSolution()
GRBException +
GRBException()
GRBException::getErrorCode()
GRBException::getMessage()
GRBBatch +
GRBBatch()
GRBBatch::abort()
GRBBatch::discard()
GRBBatch::getJSONSolution()
GRBBatch::get()
GRBBatch::retry()
GRBBatch::update()
GRBBatch::writeJSONSolution()
Non-Member Functions +
operator==
operator<=
operator>=
operator+
operator-
operator*
operator/
Attribute Enums +
GRB_CharAttr
GRB_DoubleAttr
GRB_IntAttr
GRB_StringAttr
Parameter Enums +
GRB_DoubleParam
GRB_IntParam
GRB_StringParam
Java API Overview
Java API Details
GRBEnv +
GRBEnv()
GRBEnv.dispose()
GRBEnv.get()
GRBEnv.getErrorMsg()
GRBEnv.getParamInfo()
GRBEnv.message()
GRBEnv.readParams()
GRBEnv.release()
GRBEnv.resetParams()
GRBEnv.set()
GRBEnv.start()
GRBEnv.writeParams()
GRBModel +
GRBModel()
GRBModel.addConstr()
GRBModel.addConstrs()
GRBModel.addGenConstrXxx() +
GRBModel.addGenConstrMax()
GRBModel.addGenConstrMin()
GRBModel.addGenConstrAbs()
GRBModel.addGenConstrAnd()
GRBModel.addGenConstrOr()
GRBModel.addGenConstrIndicator()
GRBModel.addGenConstrPWL()
GRBModel.addGenConstrPoly()
GRBModel.addGenConstrExp()
GRBModel.addGenConstrExpA()
GRBModel.addGenConstrLog()
GRBModel.addGenConstrLogA()
GRBModel.addGenConstrPow()
GRBModel.addGenConstrSin()
GRBModel.addGenConstrCos()
GRBModel.addGenConstrTan()
GRBModel.addQConstr()
GRBModel.addRange()
GRBModel.addRanges()
GRBModel.addSOS()
GRBModel.addVar()
GRBModel.addVars()
GRBModel.chgCoeff()
GRBModel.chgCoeffs()
GRBModel.computeIIS()
GRBModel.discardConcurrentEnvs()
GRBModel.discardMultiobjEnvs()
GRBModel.dispose()
GRBModel.feasRelax()
GRBModel.fixedModel()
GRBModel.get()
GRBModel.getCoeff()
GRBModel.getCol()
GRBModel.getConcurrentEnv()
GRBModel.getConstrByName()
GRBModel.getConstrs()
GRBModel.getEnv()
GRBModel.getGenConstrXxx() +
GRBModel.getGenConstrMax
GRBModel.getGenConstrMin
GRBModel.getGenConstrAbs
GRBModel.getGenConstrAnd
GRBModel.getGenConstrOr
GRBModel.getGenConstrIndicator
GRBModel.getGenConstrPWL
GRBModel.getGenConstrPoly
GRBModel.getGenConstrExp
GRBModel.getGenConstrExpA
GRBModel.getGenConstrLog
GRBModel.getGenConstrLogA
GRBModel.getGenConstrPow
GRBModel.getGenConstrSin
GRBModel.getGenConstrCos
GRBModel.getGenConstrTan
GRBModel.getGenConstrs()
GRBModel.getJSONSolution()
GRBModel.getMultiobjEnv()
GRBModel.getObjective()
GRBModel.getPWLObj()
GRBModel.getQCRow()
GRBModel.getQConstrs()
GRBModel.getRow()
GRBModel.getSOS()
GRBModel.getSOSs()
GRBModel.getTuneResult()
GRBModel.getVarByName()
GRBModel.getVars()
GRBModel.optimize()
GRBModel.optimizeasync()
GRBModel.optimizeBatch()
GRBModel.presolve()
GRBModel.read()
GRBModel.remove()
GRBModel.reset()
GRBModel.setCallback()
GRBModel.set()
GRBModel.setObjective()
GRBModel.setObjectiveN()
GRBModel.setPWLObj()
GRBModel.singleScenarioModel()
GRBModel.sync()
GRBModel.terminate()
GRBModel.tune()
GRBModel.update()
GRBModel.write()
GRBVar +
GRBVar.get()
GRBVar.index()
GRBVar.sameAs()
GRBVar.set()
GRBConstr +
GRBConstr.get()
GRBConstr.index()
GRBConstr.sameAs()
GRBConstr.set()
GRBQConstr +
GRBQConstr.get()
GRBQConstr.set()
GRBSOS +
GRBSOS.get()
GRBGenConstr +
GRBGenConstr.get()
GRBGenConstr.set()
GRBExpr +
GRBExpr.getValue()
GRBLinExpr +
GRBLinExpr()
GRBLinExpr.add()
GRBLinExpr.addConstant()
GRBLinExpr.addTerm()
GRBLinExpr.addTerms()
GRBLinExpr.clear()
GRBLinExpr.getConstant()
GRBLinExpr.getCoeff()
GRBLinExpr.getValue()
GRBLinExpr.getVar()
GRBLinExpr.multAdd()
GRBLinExpr.remove()
GRBLinExpr.size()
GRBQuadExpr +
GRBQuadExpr()
GRBQuadExpr.add()
GRBQuadExpr.addConstant()
GRBQuadExpr.addTerm()
GRBQuadExpr.addTerms()
GRBQuadExpr.clear()
GRBQuadExpr.getCoeff()
GRBQuadExpr.getLinExpr()
GRBQuadExpr.getValue()
GRBQuadExpr.getVar1()
GRBQuadExpr.getVar2()
GRBQuadExpr.multAdd()
GRBQuadExpr.remove()
GRBQuadExpr.size()
GRBColumn +
GRBColumn()
GRBColumn.addTerm()
GRBColumn.addTerms()
GRBColumn.clear()
GRBColumn.getCoeff()
GRBColumn.getConstr()
GRBColumn.remove()
GRBColumn.size()
GRBCallback +
GRBCallback()
GRBCallback.abort()
GRBCallback.addCut()
GRBCallback.addLazy()
GRBCallback.getDoubleInfo()
GRBCallback.getIntInfo()
GRBCallback.getNodeRel()
GRBCallback.getSolution()
GRBCallback.getStringInfo()
GRBCallback.setSolution()
GRBCallback.stopOneMultiObj()
GRBCallback.useSolution()
GRBException +
GRBException()
GRBException.getErrorCode()
GRBBatch +
GRBBatch()
GRBBatch.abort()
GRBBatch.discard()
GRBBatch.dispose()
GRBBatch.getJSONSolution()
GRBBatch.get()
GRBBatch.retry()
GRBBatch.update()
GRBBatch.writeJSONSolution()
GRB +
Constants
GRB.CharAttr
GRB.DoubleAttr
GRB.DoubleParam
GRB.IntAttr
GRB.IntParam
GRB.StringAttr
GRB.StringParam
.NET API Overview
.NET API Details
GRBEnv +
GRBEnv()
GRBEnv.Dispose()
GRBEnv.ErrorMsg
GRBEnv.Get()
GRBEnv.GetParamInfo()
GRBEnv.Message()
GRBEnv.ReadParams()
GRBEnv.Release()
GRBEnv.ResetParams()
GRBEnv.Set()
GRBEnv.Start()
GRBEnv.WriteParams()
GRBModel +
GRBModel()
GRBModel.AddConstr()
GRBModel.AddConstrs()
GRBModel.AddGenConstrXxx() +
GRBModel.AddGenConstrMax()
GRBModel.AddGenConstrMin()
GRBModel.AddGenConstrAbs()
GRBModel.AddGenConstrAnd()
GRBModel.AddGenConstrOr()
GRBModel.AddGenConstrIndicator()
GRBModel.AddGenConstrPWL()
GRBModel.AddGenConstrPoly()
GRBModel.AddGenConstrExp()
GRBModel.AddGenConstrExpA()
GRBModel.AddGenConstrLog()
GRBModel.AddGenConstrLogA()
GRBModel.AddGenConstrPow()
GRBModel.AddGenConstrSin()
GRBModel.AddGenConstrCos()
GRBModel.AddGenConstrTan()
GRBModel.AddQConstr()
GRBModel.AddRange()
GRBModel.AddRanges()
GRBModel.AddSOS()
GRBModel.AddVar()
GRBModel.AddVars()
GRBModel.ChgCoeff()
GRBModel.ChgCoeffs()
GRBModel.ComputeIIS()
GRBModel.DiscardConcurrentEnvs()
GRBModel.DiscardMultiobjEnvs()
GRBModel.Dispose()
GRBModel.FeasRelax()
GRBModel.FixedModel()
GRBModel.Get()
GRBModel.GetCoeff()
GRBModel.GetCol()
GRBModel.GetConcurrentEnv()
GRBModel.GetConstrByName()
GRBModel.GetConstrs()
GRBModel.GetEnv()
GRBModel.GetGenConstrXxx() +
GRBModel.GetGenConstrMax
GRBModel.GetGenConstrMin
GRBModel.GetGenConstrAbs
GRBModel.GetGenConstrAnd
GRBModel.GetGenConstrOr
GRBModel.GetGenConstrIndicator
GRBModel.GetGenConstrPWL
GRBModel.GetGenConstrPoly
GRBModel.GetGenConstrExp
GRBModel.GetGenConstrExpA
GRBModel.GetGenConstrLog
GRBModel.GetGenConstrLogA
GRBModel.GetGenConstrPow
GRBModel.GetGenConstrSin
GRBModel.GetGenConstrCos
GRBModel.GetGenConstrTan
GRBModel.GetGenConstrs()
GRBModel.GetJSONSolution()
GRBModel.GetMultiobjEnv()
GRBModel.GetObjective()
GRBModel.GetPWLObj()
GRBModel.GetQConstr()
GRBModel.GetQConstrs()
GRBModel.GetQCRow()
GRBModel.GetRow()
GRBModel.GetSOS()
GRBModel.GetSOSs()
GRBModel.GetTuneResult()
GRBModel.GetVarByName()
GRBModel.GetVars()
GRBModel.Optimize()
GRBModel.OptimizeAsync()
GRBModel.OptimizeBatch()
GRBModel.Presolve()
GRBModel.Read()
GRBModel.Remove()
GRBModel.Reset()
GRBModel.SetCallback()
GRBModel.Set()
GRBModel.SetObjective()
GRBModel.SetObjectiveN()
GRBModel.SetPWLObj()
GRBModel.SingleScenarioModel()
GRBModel.Sync()
GRBModel.Terminate()
GRBModel.Tune()
GRBModel.Update()
GRBModel.Write()
GRBVar +
GRBVar.Get()
GRBVar.Index
GRBVar.SameAs()
GRBVar.Set()
GRBConstr +
GRBConstr.Get()
GRBConstr.Index
GRBConstr.SameAs()
GRBConstr.Set()
GRBQConstr +
GRBQConstr.Get()
GRBQConstr.Set()
GRBSOS +
GRBSOS.Get()
GRBGenConstr +
GRBGenConstr.Get()
GRBGenConstr.Set()
GRBExpr +
GRBExpr.Value
GRBLinExpr +
GRBLinExpr()
GRBLinExpr.Add()
GRBLinExpr.AddConstant()
GRBLinExpr.AddTerm()
GRBLinExpr.AddTerms()
GRBLinExpr.Clear()
GRBLinExpr.Constant
GRBLinExpr.GetCoeff()
GRBLinExpr.GetVar()
GRBLinExpr.MultAdd()
GRBLinExpr.Remove()
GRBLinExpr.Size
GRBLinExpr.Value
GRBQuadExpr +
GRBQuadExpr()
GRBQuadExpr.Add()
GRBQuadExpr.AddConstant()
GRBQuadExpr.AddTerm()
GRBQuadExpr.AddTerms()
GRBQuadExpr.Clear()
GRBQuadExpr.GetCoeff()
GRBQuadExpr.GetVar1()
GRBQuadExpr.GetVar2()
GRBQuadExpr.LinExpr()
GRBQuadExpr.MultAdd()
GRBQuadExpr.Remove()
GRBQuadExpr.Size
GRBQuadExpr.Value
GRBTempConstr
GRBColumn +
GRBColumn()
GRBColumn.AddTerm()
GRBColumn.AddTerms()
GRBColumn.Clear()
GRBColumn.GetCoeff()
GRBColumn.GetConstr()
GRBColumn.Remove()
GRBColumn.Size
Overloaded Operators +
operator <=
operator >=
operator ==
operator +
operator -
operator *
operator /
implicit cast
GRBCallback +
GRBCallback()
GRBCallback.Abort()
GRBCallback.AddCut()
GRBCallback.AddLazy()
GRBCallback.GetDoubleInfo()
GRBCallback.GetIntInfo()
GRBCallback.GetNodeRel()
GRBCallback.GetSolution()
GRBCallback.GetStringInfo()
GRBCallback.SetSolution()
GRBCallback.StopOneMultiObj()
GRBCallback.UseSolution()
GRBException +
GRBException()
GRBException.ErrorCode
GRBBatch +
GRBBatch()
GRBBatch.Abort()
GRBBatch.Discard()
GRBBatch.GetJSONSolution()
GRBBatch.Get()
GRBBatch.Retry()
GRBBatch.Update()
GRBBatch.WriteJSONSolution()
GRB +
Constants
GRB.CharAttr
GRB.DoubleAttr
GRB.DoubleParam
GRB.IntAttr
GRB.IntParam
GRB.StringAttr
GRB.StringParam
Python API Overview
Python API Details
Global Functions +
models()
disposeDefaultEnv()
multidict()
paramHelp()
quicksum()
read()
readParams()
resetParams()
setParam()
system()
writeParams()
Model +
Model()
Model.addConstr()
Model.addConstrs()
Model.addGenConstrXxx()
Model.addGenConstrMax()
Model.addGenConstrMin()
Model.addGenConstrAbs()
Model.addGenConstrAnd()
Model.addGenConstrOr()
Model.addGenConstrIndicator()
Model.addGenConstrPWL()
Model.addGenConstrPoly()
Model.addGenConstrExp()
Model.addGenConstrExpA()
Model.addGenConstrLog()
Model.addGenConstrLogA()
Model.addGenConstrPow()
Model.addGenConstrSin()
Model.addGenConstrCos()
Model.addGenConstrTan()
Model.addLConstr()
Model.addMConstrs()
Model.addMQConstr()
Model.addMVar()
Model.addQConstr()
Model.addRange()
Model.addSOS()
Model.addVar()
Model.addVars()
Model.cbCut()
Model.cbGet()
Model.cbGetNodeRel()
Model.cbGetSolution()
Model.cbLazy()
Model.cbSetSolution()
Model.cbStopOneMultiObj()
Model.cbUseSolution()
Model.chgCoeff()
Model.computeIIS()
Model.copy()
Model.discardConcurrentEnvs()
Model.discardMultiobjEnvs()
Model.dispose()
Model.feasRelaxS()
Model.feasRelax()
Model.fixed()
Model.getA()
Model.getAttr()
Model.getCoeff()
Model.getCol()
Model.getConcurrentEnv()
Model.getConstrByName()
Model.getConstrs()
Model.getGenConstrMax()
Model.getGenConstrMin()
Model.getGenConstrAbs()
Model.getGenConstrAnd()
Model.getGenConstrOr()
Model.getGenConstrIndicator()
Model.getGenConstrPWL()
Model.getGenConstrPoly()
Model.getGenConstrExp()
Model.getGenConstrExpA()
Model.getGenConstrLog()
Model.getGenConstrLogA()
Model.getGenConstrPow()
Model.getGenConstrSin()
Model.getGenConstrCos()
Model.getGenConstrTan()
Model.getGenConstrs()
Model.getJSONSolution()
Model.getMultiobjEnv()
Model.getObjective()
Model.getParamInfo()
Model.getPWLObj()
Model.getQConstrs()
Model.getQCRow()
Model.getRow()
Model.getSOS()
Model.getSOSs()
Model.getTuneResult()
Model.getVarByName()
Model.getVars()
Model.message()
Model.optimize()
Model.optimizeBatch()
Model.presolve()
Model.printAttr()
Model.printQuality()
Model.printStats()
Model.read()
Model.relax()
Model.remove()
Model.reset()
Model.resetParams()
Model.setAttr()
Model.setMObjective()
Model.setObjective()
Model.setObjectiveN()
Model.setPWLObj()
Model.setParam()
Model.singleScenarioModel()
Model.terminate()
Model.tune()
Model.update()
Model.write()
Var +
Var.getAttr()
Var.sameAs()
Var.index
Var.setAttr()
MVar +
MVar()
MVar.copy()
MVar.getAttr()
MVar.setAttr()
MVar.sum()
Constr +
Constr.getAttr()
Constr.index
Constr.sameAs()
Constr.setAttr()
QConstr +
QConstr.getAttr()
QConstr.setAttr()
SOS +
SOS.getAttr()
GenConstr +
GenConstr.getAttr()
GenConstr.setAttr()
LinExpr +
LinExpr()
LinExpr.add()
LinExpr.addConstant()
LinExpr.addTerms()
LinExpr.clear()
LinExpr.copy()
LinExpr.getConstant()
LinExpr.getCoeff()
LinExpr.getValue()
LinExpr.getVar()
LinExpr.remove()
LinExpr.size()
LinExpr.__eq__()
LinExpr.__le__()
LinExpr.__ge__()
QuadExpr +
QuadExpr()
QuadExpr.add()
QuadExpr.addConstant()
QuadExpr.addTerms()
QuadExpr.clear()
QuadExpr.copy()
QuadExpr.getCoeff()
QuadExpr.getLinExpr()
QuadExpr.getValue()
QuadExpr.getVar1()
QuadExpr.getVar2()
QuadExpr.remove()
QuadExpr.size()
QuadExpr.__eq__()
QuadExpr.__le__()
QuadExpr.__ge__()
GenExpr
MLinExpr +
MLinExpr.copy()
MLinExpr.getValue()
MLinExpr.__eq__()
MLinExpr.__le__()
MLinExpr.__ge__()
MQuadExpr +
MQuadExpr.copy()
MQuadExpr.getValue()
MQuadExpr.__eq__()
MQuadExpr.__le__()
MQuadExpr.__ge__()
TempConstr
Column +
Column()
Column.addTerms()
Column.clear()
Column.copy()
Column.getCoeff()
Column.getConstr()
Column.remove()
Column.size()
Callbacks
GurobiError
Env +
Env()
Env.ClientEnv()
Env.CloudEnv()
Env.resetParams()
Env.setParam()
Env.start()
Env.writeParams()
Env.dispose()
Batch +
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Batch.abort()
Batch.discard()
Batch.dispose()
Batch.getJSONSolution()
Batch.retry()
Batch.update()
Batch.writeJSONSolution()
GRB +
Constants
GRB.Attr
GRB.Param
tuplelist +
tuplelist()
tuplelist.select()
tuplelist.clean()
tuplelist.__contains__()
tupledict +
tupledict()
tupledict.select()
tupledict.sum()
tupledict.prod()
tupledict.clean()
General Constraint Helper Functions +
abs_()
and_()
max_()
min_()
or_()
MATLAB API Overview
MATLAB API Details
Common Arguments +
The model argument
The params argument
The env argument
Solving a Model +
gurobi()
gurobi_iis()
gurobi_feasrelax()
gurobi_relax()
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Using Gurobi within MATLAB's Problem-Based Optimization
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R API Overview
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UB
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Xn
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IntVio
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Multi-objective Attributes +
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Method
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NormAdjust
NumericFocus
ObjNumber
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OptimalityTol
OutputFlag
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PoolGap
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Quad
Record
ResultFile
RINS
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ServerPassword
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Sifting
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Parameter Examples +
C Parameter Examples
C++ Parameter Examples
C# Parameter Examples
Java Parameter Examples
MATLAB Parameter Examples
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R Parameter Examples
Visual Basic Parameter Examples
Optimization Status Codes
Batch Status Codes
Callback Codes
Error Codes
Model File Formats
MPS format
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ORD format
BAS format
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ATTR format
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Logging
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Multi-Objective Logging
Distributed MIP Logging
Gurobi Command-Line Tool
Solving a Model
Replaying Recording Files
Solution Pool
Finding Multiple Solutions
Examples
Retrieving Solutions
Subtleties and Limitations
Multiple Objectives
Specifying Multiple Objectives
Working With Multiple Objective
Additional Details
Multiple Scenarios
Definition of a Multi-Scenario Model
Specifying Multiple Scenarios
Logging
Retrieving Solutions for Multiple Scenarios
Tips and Tricks
Limitations and Additional Considerations
Batch Optimization
Setting Up a Batch Environment
Tagging Variables or Constraints
Submitting a Batch Optimization Request
Interacting with Batch Requests
Interpreting the JSON Solution
A Complete Example
Recording API Calls
Recording
Replay
Limitations
Concurrent Optimizer
Parameter Tuning Tool
Command-Line Tuning
Tuning API
Gurobi Instant Cloud
Client Setup
Instant Cloud Setup
Copyright Notice for 3rd Party Libraries
Gurobi Guidelines for Numerical Issues
Avoid rounding of input
Real numbers are not real
Tolerances and user-scaling +
Gurobi tolerances and the limitations of double-precision arithmetic
Why scaling and geometry is relevant
Recommended ranges for variables and constraints
Improving ranges for variables and constraints
Advanced user scaling
Avoid hiding large coefficients
Dealing with big-M constraints
Does my model have numerical issues?
Solver parameters to manage numerical issues +
Presolve
Choosing the right algorithm
Making the algorithm less sensitive
Instability and the geometry of optimization problems +
The case of linear systems:
The geometry of linear optimization problems
Multiple optimal solutions
Dealing with epsilon-optimal solutions
Thin feasible regions
Optimizing over the circle:
Optimizing over thin regions:
Stability and convergence
Further reading
Source code examples: +
Source code for the experiment of optimizing over a circle
Source code for the experiment on a thin feasible region
Source code for the experiment with column scalings
next up previous
Next: GRBConstr::sameAs() Up: GRBConstr Previous: GRBConstr::get()


GRBConstr::index()

int index ( )

    This method returns the current index, or order, of the constraint in the underlying constraint matrix.

    Return value:

    <span>$</span>= -2<span>$</span> : removed
    <span>$</span>= -1<span>$</span> : not in model
    <span>$</span>\geq 0<span>$</span> : index of the constraint in the model

    Note that the index of a constraint may change after subsequent model modifications.

next up previous
Next: GRBConstr::sameAs() Up: GRBConstr Previous: GRBConstr::get()