| # Gaudi Framework, version v21r8 |

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# IFuncMinimum Class Reference

Interface file to find minimum of the function and compute covariance matrix (matrix of error). More...

`#include <GaudiGSL/IFuncMinimum.h>`

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List of all members.

## Public Types
typedef Genfun::AbsFunction | GenFunc
| Function which we minimize (.
typedef Genfun::Argument | Arg
| Argument of function "GenFunc" (.
typedef CLHEP::HepSymMatrix | Covariance
| Covariance matrix (matrix of error) (.
## Public Member Functions
| DeclareInterfaceID (IFuncMinimum, 2, 0)
| InterfaceID.
virtual StatusCode | minimum (const GenFunc &fun, Arg &pars) const =0
| Do Multidimensional Minimization.
virtual StatusCode | minimum (const GenFunc &fun, Arg &pars, Covariance &covar) const =0
| Find minimum and gradient of the function "GenFunc".

## Detailed Description

Interface file to find minimum of the function and compute covariance matrix (matrix of error).

Author:
  Kirill Miklyaev kirillm@iris1.itep.ru

Date:
  2002-09-14

Definition at line 29 of file IFuncMinimum.h.

## Member Typedef Documentation

typedef Genfun::AbsFunction IFuncMinimum::GenFunc

Function which we minimize (.

See also:
  CLHEP/GenericFunctions/AbsFunction.hh)

Definition at line 35 of file IFuncMinimum.h.

typedef Genfun::Argument IFuncMinimum::Arg

Argument of function "GenFunc" (.

See also:
  CLHEP/GenericFunctions/Argument.hh)

Definition at line 37 of file IFuncMinimum.h.

typedef CLHEP::HepSymMatrix IFuncMinimum::Covariance

Covariance matrix (matrix of error) (.

See also:
  CLHEP/Matrix/SymMatrix.h)

Definition at line 39 of file IFuncMinimum.h.

## Member Function Documentation

IFuncMinimum::DeclareInterfaceID | ( | IFuncMinimum | ,
|  | 2 | ,
|  | 0 |  |
| ) |  |  |

InterfaceID.

virtual StatusCode IFuncMinimum::minimum | ( | const GenFunc & | fun,
|  | Arg & | pars |
| ) |  |  | const`[pure virtual]`

Do Multidimensional Minimization.

Find minimum and gradient of the function "GenFunc"

Parameters:

  | fun | - function

See also:
  CLHEP/GenericFunctions/AbsFunction.hh

Parameters:

  | pars | - argument

See also:
  CLHEP/GenericFunctions/Argument.hh

Returns:
  StatusCode

virtual StatusCode IFuncMinimum::minimum | ( | const GenFunc & | fun,
|  | Arg & | pars,
|  | Covariance & | covar |
| ) |  |  | const`[pure virtual]`

Find minimum and gradient of the function "GenFunc".

Parameters:

  | fun | - function

See also:
  CLHEP/GenericFunctions/AbsFunction.hh

Parameters:

  | pars | - argument

See also:
  CLHEP/GenericFunctions/Argument.hh

Parameters:

  | covar | - covariance matrix (matrix of error)

See also:
  CLHEP/Matrix/SymMatrix.h

Returns:
  StatusCode

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r8/GaudiGSL/GaudiGSL/IFuncMinimum.h