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
 
namespace sistripvvi {
  // ***********************************************************************************************************************
  // ***********************************************************************************************************************
  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];
  };
}  // namespace sistripvvi
 
#endif