GaussianTail.h

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#ifndef FastSimulation_Utilities_GaussianTail_H
#define FastSimulation_Utilities_GaussianTail_H
 
// Florian Beaudette (LLR).
// 11/09/06
// Gaussian tail generator. Copied from the GNU Scientific library
 
class RandomEngineAndDistribution;
 
class GaussianTail {
public:
  GaussianTail(double sigma = 1., double threshold = 2.);
  ~GaussianTail();
  inline void setParameters(double sigma, double threshold) {
    sigma_ = sigma;
    threshold_ = threshold;
    s_ = threshold_ / sigma_;
    ssquare_ = s_ * s_;
  };
  double shoot(RandomEngineAndDistribution const*) const;
 
private:
  double sigma_;
  double threshold_;
  double s_;
  double ssquare_;
};
 
#endif