ChebyshevSeries.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2015 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
//-----------------------------------------------------------------------------
// Includes
//-----------------------------------------------------------------------------
#include "MantidKernel/DllConfig.h"
#include <vector>
 
namespace Mantid {
namespace Kernel {
 
class MANTID_KERNEL_DLL ChebyshevSeries {
public:
  ChebyshevSeries(const size_t degree);
  double operator()(const std::vector<double> &c, const double x);
 
private:
  // Storage for n+3 coefficents in the recurrence relation
  std::vector<double> m_bk;
};
 
} // namespace Kernel
} // namespace Mantid