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# Ipopt::LeastSquareMultipliers Class Reference

Class for calculator for the least-square equality constraint multipliers. More...

`#include <IpLeastSquareMults.hpp>`

Inheritance diagram for Ipopt::LeastSquareMultipliers:

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Collaboration diagram for Ipopt::LeastSquareMultipliers:

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List of all members.

## Public Member Functions
virtual bool | InitializeImpl (const OptionsList &options, const std::string &prefix)
| overloaded from AlgorithmStrategyObject
virtual bool | CalculateMultipliers (Vector &y_c, Vector &y_d)
| This method computes the least-square estimates for y_c and y_d at the current point.
Constructors/Destructors
| LeastSquareMultipliers (AugSystemSolver &augSysSolver)
| Constructor.
virtual | ~LeastSquareMultipliers ()
| Default destructor.
## Private Member Functions
Default Compiler Generated Methods
(Hidden to avoid implicit creation/calling). These methods are not implemented and we do not want the compiler to implement them for us, so we declare them private and do not define them. This ensures that they will not be implicitly created/called.
| LeastSquareMultipliers ()
| Default Constructor.
| LeastSquareMultipliers (const LeastSquareMultipliers &)
| Copy Constructor.
void | operator= (const LeastSquareMultipliers &)
| Overloaded Equals Operator.
## Private Attributes
SmartPtr< AugSystemSolver > | augsyssolver_
| Pointer for the augmented system solver to be used for solving the linear system.

## Detailed Description

Class for calculator for the least-square equality constraint multipliers.

The Calculate method of this class computes the least-square estimate for the y_c and y_d multiplers, based on the current values of the gradient of the Lagrangian.

Definition at line 23 of file IpLeastSquareMults.hpp.

## Constructor & Destructor Documentation

Ipopt::LeastSquareMultipliers::LeastSquareMultipliers | ( | AugSystemSolver & | augSysSolver | ) |

Constructor.

It needs to be given the strategy object for solving the augmented system.

virtual Ipopt::LeastSquareMultipliers::~LeastSquareMultipliers | ( |  | ) | `[inline, virtual]`

Default destructor.

Definition at line 32 of file IpLeastSquareMults.hpp.

Ipopt::LeastSquareMultipliers::LeastSquareMultipliers | ( |  | ) | `[private]`

Default Constructor.

Ipopt::LeastSquareMultipliers::LeastSquareMultipliers | ( | const LeastSquareMultipliers & |  | ) | `[private]`

Copy Constructor.

## Member Function Documentation

virtual bool Ipopt::LeastSquareMultipliers::InitializeImpl | ( | const OptionsList & | options,
|  | const std::string & | prefix |
| ) |  |  | `[virtual]`

overloaded from AlgorithmStrategyObject

Implements Ipopt::EqMultiplierCalculator.

virtual bool Ipopt::LeastSquareMultipliers::CalculateMultipliers | ( | Vector & | y_c,
|  | Vector & | y_d |
| ) |  |  | `[virtual]`

This method computes the least-square estimates for y_c and y_d at the current point.

The return value is false, if the least square system could not be solved (the linear system is singular).

Implements Ipopt::EqMultiplierCalculator.

void Ipopt::LeastSquareMultipliers::operator= | ( | const LeastSquareMultipliers & |  | ) | `[private]`

Overloaded Equals Operator.

## Member Data Documentation

SmartPtr<AugSystemSolver> Ipopt::LeastSquareMultipliers::augsyssolver_`[private]`

Pointer for the augmented system solver to be used for solving the linear system.

Definition at line 68 of file IpLeastSquareMults.hpp.

The documentation for this class was generated from the following file:

- /home/coin/SVN-release/Ipopt-3.5.1/Ipopt/src/Algorithm/IpLeastSquareMults.hpp