VVIObj.h

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//
//  VVIObj.h (v2.0)
//
//  Vavilov density and distribution functions
//
//
// Created by Morris Swartz on 1/14/10.
// 2010 __TheJohnsHopkinsUniversity__.
//
// V1.1 - make dzero call both fcns with a switch
// V1.2 - remove inappriate initializers and add methods to return non-zero/normalized region
// V2.0 - restructuring and speed improvements by V. Innocente
//

#ifndef VVIObj_h
#define VVIObj_h 1

// ***********************************************************************************************************************
// ***********************************************************************************************************************
class VVIObj {
public:
  VVIObj(double kappa = 0.01, double beta2 = 1., int mode = 0);  

  double fcn(double x) const;  
  void limits(double& xl,
              double& xu) const;  

private:
  // Vavilov distribution parameters (inputs and common block /G116C1/)

  const int mode_;  
  double t0_;
  double t1_;
  double t_;
  double omega_;
  double x0_;
  double a_[155];
  double b_[155];
};

#endif