tjnumeric.h

/***************************************************************************
                          tjnumeric.h  -  description
                             -------------------
    begin                : Mon May 5 2003
    copyright            : (C) 2000-2021 by Thies H. Jochimsen
    email                : thies@jochimsen.de
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef TJNUMERIC_H
#define TJNUMERIC_H
 
#include <tjutils/tjutils.h>
#include <tjutils/tjvector.h>
 
int solve_cubic (double a, double b, double c,
                      double *x0, double *x1, double *x2);
 
 
 
class RandomDist {
 
 public:
  RandomDist();
  ~RandomDist();
 
  double gaussian(double stdev) const;
 
  double uniform() const;
 
 private:
  void* rng;
};
 
 
class MinimizationFunction {
 
 public:
 
  virtual unsigned int numof_fitpars() const = 0;
 
  virtual float evaluate(const fvector&) const = 0;
};
 
 
 
 
fvector bruteforce_minimize1d(const MinimizationFunction& f, float low, float upp);
 
 
#endif