InterpolationTypes.h

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// @(#)root/mathmore:$Id$
// Authors: L. Moneta, A. Zsenei   08/2005

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// Header file for class InterpolationTypes
//
// Created by: moneta  at Fri Nov 26 15:40:58 2004
//
// Last update: Fri Nov 26 15:40:58 2004
//
#ifndef ROOT_Math_InterpolationTypes
#define ROOT_Math_InterpolationTypes


namespace ROOT {
namespace Math {


   namespace Interpolation {

      /**
       Enumeration defining the types of interpolation methods availables.
       Passed as argument to instantiate mathlib::Interpolator objects.
       The types available are (more information is available in the
       <A HREF="http://www.gnu.org/software/gsl/manual/html_node/Interpolation-Types.html">GSL manual</A>):
       <ul>
       <li>LINEAR interpolation;
       <li>POLYNOMIAL interpolation, to be used for small number of points since introduces large oscillations;
       <li>CSPLINE cubic spline with natural boundary conditions;
       <li>CSPLINE_PERIODIC cubic spline with periodic boundary conditions;
       <li>AKIMA, Akima spline with natural boundary conditions ( requires a minimum of 5 points);
       <li>AKIMA_PERIODIC, Akima spline with periodic boundaries ( requires a minimum of 5 points);
       </ul>


       @ingroup Interpolation
       */

      // enumerations for the type of interpolations
      enum Type {  kLINEAR,
         kPOLYNOMIAL,
         kCSPLINE,
         kCSPLINE_PERIODIC,
         kAKIMA,
         kAKIMA_PERIODIC
      };
   }


} // namespace Math
} // namespace ROOT

#endif /* ROOT_Math_InterpolationTypes */