VVIObjF.h

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//
//  VVIObjF.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 VVIObjF_h
#define VVIObjF_h 1
 
// ***********************************************************************************************************************
// ***********************************************************************************************************************
class VVIObjF {
public:
  VVIObjF(float kappa = 0.01, float beta2 = 1., int mode = 0);  
 
  float fcn(float x) const;  
  void limits(float& xl,
              float& xu) const;  
 
private:
  // Vavilov distribution parameters (inputs and common block /G116C1/)
 
  const int mode_;  
  float t0_;
  float t1_;
  float t_;
  float omega_;
  float x0_;
  float a_[155];
  float b_[155];
};
 
#endif