MuonHelpers.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2021 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
#include "MantidCurveFitting/DllConfig.h"
#include <cmath>
 
namespace Mantid {
namespace CurveFitting {
namespace MuonHelper {
// Computes A_z formula for fitting functions for decoupling of asymmetry in the ordered state of a powdered magnet
double MANTID_CURVEFITTING_DLL getAz(double xValue, const double charField);
 
// Computes differential of the A_z formula for fitting functions for decoupling of asymmetry in the ordered state of a
// powdered magnet
double MANTID_CURVEFITTING_DLL getDiffAz(double xValue, const double charField);
 
// Computes the Activation Fit function
double MANTID_CURVEFITTING_DLL getActivationFunc(double xValue, const double attemptRate, const double barrier,
                                                 const double unitMultipy);
 
// Computes the Activation Fit function differentials
double MANTID_CURVEFITTING_DLL getAttemptRateDiff(double xValue, const double barrier, const double unitMultipy);
double MANTID_CURVEFITTING_DLL getBarrierDiff(double xValue, const double attemptRate, const double barrier,
                                              const double unitMultipy);
} // namespace MuonHelper
} // namespace CurveFitting
} // namespace Mantid