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GlobiPack_GoldenQuadInterpBracket_decl.hpp
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43 
44 #ifndef GLOBIPACK_GOLDEN_BRACKET_QUAD_INTERP_DECL_HPP
45 #define GLOBIPACK_GOLDEN_BRACKET_QUAD_INTERP_DECL_HPP
46 
47 
49 #include "Teuchos_Describable.hpp"
52 
53 
54 namespace GlobiPack {
55 
56 
62 template<typename Scalar>
64  : public Teuchos::Describable,
65  public Teuchos::VerboseObject<GoldenQuadInterpBracket<Scalar> >,
67 {
68 public:
69 
72 
75 
77 
80 
82  void setParameterList(RCP<ParameterList> const& paramList);
85 
87 
90 
133  bool bracketMinimum(
134  const MeritFunc1DBase<Scalar> &phi,
135  const Ptr<PointEval1D<Scalar> > &pointLower,
136  const Ptr<PointEval1D<Scalar> > &pointMiddle,
137  const Ptr<PointEval1D<Scalar> > &pointUpper,
138  const Ptr<int> &numIters = Teuchos::null
139  ) const;
140 
142 
143 private:
144 
145  // //////////////////////
146  // Private data members
147 
148 };
149 
150 
155 template<typename Scalar>
156 inline
158 {
160 }
161 
162 
163 // Default values are exposed here for unit testing purposes
164 
165 
166 namespace GoldenQuadInterpBracketUtils {
167 
168 
169 const std::string eta_name = "Armijo Slope Fraction";
170 const double eta_default = 1.0e-4;
171 
172 
173 } // namespace GoldenQuadInterpBracketUtils
174 
175 
176 
177 } // namespace GlobiPack
178 
179 
180 #endif // GLOBIPACK_GOLDEN_BRACKET_QUAD_INTERP_DECL_HPP
Simple concrete class that implements a 1D algorithm to bracket the minimum of a 1D merit function...
GoldenQuadInterpBracket()
Construct with default parameters.
void setParameterList(RCP< ParameterList > const &paramList)
bool bracketMinimum(const MeritFunc1DBase< Scalar > &phi, const Ptr< PointEval1D< Scalar > > &pointLower, const Ptr< PointEval1D< Scalar > > &pointMiddle, const Ptr< PointEval1D< Scalar > > &pointUpper, const Ptr< int > &numIters=Teuchos::null) const
Bracket the minimum of a 1D function.
Represents the evaluation point of the merit function phi(alpha) and/or is derivative Dphi(alpha)...
TEUCHOS_DEPRECATED RCP< T > rcp(T *p, Dealloc_T dealloc, bool owns_mem)
RCP< const ParameterList > getValidParameters() const
Base class for 1D merit fucntions used in globalization methods.
const RCP< GoldenQuadInterpBracket< Scalar > > goldenQuadInterpBracket()
Nonmember constructor.