21 #ifndef mia_2d_ground_truth_problem_hh
22 #define mia_2d_ground_truth_problem_hh
66 void set_alpha_beta(
double a,
double b);
71 const std::vector<double>& get_spacial_gradient()
const;
74 const std::vector<double>& get_time_derivative()
const;
79 size_t do_size()
const;
83 double evaluate_slice_gradient(CDoubleVector::const_iterator ii, std::vector<double>::iterator iout);
85 std::vector<double> m_spacial_gradient;
86 std::vector<double> m_time_derivative;