physics_funcs.h

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/* Copyright (C) 2002-2012
   Patrick Eriksson <Patrick.Eriksson@chalmers.se>
   Stefan Buehler   <sbuehler@ltu.se>
 
   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, or (at your option) any
   later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
   USA. */
 
 
 
/*===========================================================================
  === File description 
  ===========================================================================*/
 
#ifndef physics_h
#define physics_h
 
/*===========================================================================
  === External declarations
  ===========================================================================*/
 
#include "arts.h"
#include "matpackI.h"
#include "complex.h"          
 
 
 
/*===========================================================================
  === Functions in physics_funcs.h
  ===========================================================================*/
 
Numeric barometric_heightformula (const Numeric& p,
                                  const Numeric& dh);
 
Numeric dinvplanckdI(
        const Numeric&  i,
        const Numeric&  f );
 
void fresnel(
             Complex&   Rv,
             Complex&   Rh,
       const Complex&   n1,
       const Complex&   n2,
       const Numeric&   theta );
 
Numeric invplanck(
        const Numeric&  i,
        const Numeric&  f );
 
Numeric invrayjean(
        const Numeric&  i,
        const Numeric&  f );
 
Numeric number_density(  
        const Numeric&   p,
        const Numeric&   t );
 
Numeric planck( 
        const Numeric&   f, 
        const Numeric&   t );
 
Numeric rayjean(
        const Numeric&  f,
        const Numeric&  t );
 
#ifdef ENABLE_REFICE
extern "C" {
#endif
 
    Complex refice_(const Numeric& wavlen, const Numeric& temp);
#ifdef ENABLE_REFICE
}
#endif
 
#endif // physics_h