/usr/include/openturns/ProductHessian.hxx is in libopenturns-dev 1.9-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* @brief The class that implements the composition between numerical math hessians
*
* Copyright 2005-2017 Airbus-EDF-IMACS-Phimeca
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef OPENTURNS_PRODUCTHESSIAN_HXX
#define OPENTURNS_PRODUCTHESSIAN_HXX
#include "openturns/HessianImplementation.hxx"
#include "openturns/GradientImplementation.hxx"
#include "openturns/EvaluationImplementation.hxx"
BEGIN_NAMESPACE_OPENTURNS
/**
* @class ProductHessian
*
* The class that implement the composition of two numerical math hessians
*/
class OT_API ProductHessian
: public HessianImplementation
{
CLASSNAME;
public:
/* Some typedefs for easy reading */
typedef Pointer<HessianImplementation> HessianPointer;
typedef Pointer<GradientImplementation> GradientPointer;
typedef Pointer<EvaluationImplementation> EvaluationPointer;
/** Default constructor */
ProductHessian(const EvaluationPointer & p_leftEvaluation,
const GradientPointer & p_leftGradient,
const HessianPointer & p_leftHessian,
const EvaluationPointer & p_rightEvaluation,
const GradientPointer & p_rightGradient,
const HessianPointer & p_rightHessian);
/** Virtual constructor */
virtual ProductHessian * clone() const;
/** Comparison operator */
Bool operator ==(const ProductHessian & other) const;
/** String converter */
virtual String __repr__() const;
/** Method hessian() returns the symmetric tensor of the function at point */
SymmetricTensor hessian(const Point & inP) const;
/** Accessor for input point dimension */
UnsignedInteger getInputDimension() const;
/** Accessor for output point dimension */
UnsignedInteger getOutputDimension() const;
/** Method save() stores the object through the StorageManager */
void save(Advocate & adv) const;
/** Method load() reloads the object from the StorageManager */
void load(Advocate & adv);
protected:
ProductHessian() {};
friend class Factory<ProductHessian>;
private:
/** The function of f in h = f . g */
EvaluationPointer p_leftEvaluation_;
/** The gradient of f in h = f . g */
GradientPointer p_leftGradient_;
/** The hessian of f in h = f . g */
HessianPointer p_leftHessian_;
/** The function g in h = f . g */
EvaluationPointer p_rightEvaluation_;
/** The gradient of g in h = f . g */
GradientPointer p_rightGradient_;
/** The hessian of g in h = f . g */
HessianPointer p_rightHessian_;
}; /* class ProductHessian */
END_NAMESPACE_OPENTURNS
#endif /* OPENTURNS_PRODUCTHESSIAN_HXX */
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