ROL
sacado/example_02.hpp
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43
44#include "ROL_StdVector.hpp"
45
46using namespace ROL;
47
48
52template<class Real>
54 public:
55 template<class ScalarT>
56 ScalarT value(const Vector<ScalarT> &x, Real &tol);
57
58};
59
60template <class Real>
61template <class ScalarT>
62ScalarT Example_Objective<Real>::value(const Vector<ScalarT>& x, Real &tol) {
63
64 ROL::Ptr<const std::vector<ScalarT> > xp =
65 (dynamic_cast<const StdVector<ScalarT>&>(x)).getVector();
66
67 ScalarT x1 = (*xp)[0];
68 ScalarT x2 = (*xp)[1];
69 ScalarT x3 = (*xp)[2];
70 ScalarT x4 = (*xp)[3];
71 ScalarT x5 = (*xp)[4];
72
73 ScalarT J = exp(x1*x2*x3*x4*x5) - 0.5 * pow( (pow(x1,3)+pow(x2,3)+1.0), 2);
74 return J;
75}
76
77
78
84template<class Real>
85class Example_Constraint {
86 public:
87 int dim;
88
89 template<class ScalarT>
90 void value(Vector<ScalarT> &c, const Vector<ScalarT> &x, Real &tol);
91};
92
93
94template<class Real>
95template<class ScalarT>
96void Example_Constraint<Real>::value(Vector<ScalarT> &c, const Vector<ScalarT> &x, Real &tol) {
97
98 typedef std::vector<ScalarT> vector;
99 typedef StdVector<ScalarT> SV;
100
101
102
103 ROL::Ptr<vector> cp = dynamic_cast<SV&>(c).getVector();
104 ROL::Ptr<const vector> xp = dynamic_cast<const SV&>(x).getVector();
105
106 ScalarT x1 = (*xp)[0];
107 ScalarT x2 = (*xp)[1];
108 ScalarT x3 = (*xp)[2];
109 ScalarT x4 = (*xp)[3];
110 ScalarT x5 = (*xp)[4];
111
112 (*cp)[0] = x1*x1+x2*x2+x3*x3+x4*x4+x5*x5 - 10.0;
113 (*cp)[1] = x2*x3 - 5.0*x4*x5;
114 (*cp)[2] = x1*x1*x1 + x2*x2*x2 + 1.0;
115
116}
117
Objective function:
ScalarT value(const Vector< ScalarT > &x, Real &tol)
Provides the ROL::Vector interface for scalar values, to be used, for example, with scalar constraint...
Defines the linear algebra or vector space interface.
Definition: ROL_Vector.hpp:84
ROL::Objective_SerialSimOpt Objective_SimOpt value(const V &u, const V &z, Real &tol) override
constexpr auto dim