functions.h

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#ifndef FUNCTIONS_H
#define FUNCTIONS_H
 
#include <vector>
#include <functional>
#include <limits>
#include <algorithm>
#include "scalar.h"
 
using RealValuedFunction = std::function<double(double)>;
using RealValuedForm = std::function<double(std::vector<double>)>;
using ComplexValuedFunction = std::function<scalar_t(double)>;
 
struct ScaledForm {
    RealValuedForm f;
    std::vector<double> x0;
    std::vector<double> s;
 
    ScaledForm(const RealValuedForm& f, const std::vector<double>& x0, const std::vector<double>& scales);
    double operator()(const std::vector<double>& t) const;
};
 
#endif // FUNCTIONS_H