#include "erfa.h"

double eraFapa03(double t)
/*
**  - - - - - - - - - -
**   e r a F a p a 0 3
**  - - - - - - - - - -
**
**  Fundamental argument, IERS Conventions (2003):
**  general accumulated precession in longitude.
**
**  Given:
**     t     double    TDB, Julian centuries since J2000.0 (Note 1)
**
**  Returned (function value):
**           double    general precession in longitude, radians (Note 2)
**
**  Notes:
**
**  1) Though t is strictly TDB, it is usually more convenient to use
**     TT, which makes no significant difference.
**
**  2) The expression used is as adopted in IERS Conventions (2003).  It
**     is taken from Kinoshita & Souchay (1990) and comes originally
**     from Lieske et al. (1977).
**
**  References:
**
**     Kinoshita, H. and Souchay J. 1990, Celest.Mech. and Dyn.Astron.
**     48, 187
**
**     Lieske, J.H., Lederle, T., Fricke, W. & Morando, B. 1977,
**     Astron.Astrophys. 58, 1-16
**
**     McCarthy, D. D., Petit, G. (eds.), IERS Conventions (2003),
**     IERS Technical Note No. 32, BKG (2004)
**
**  Copyright (C) 2013-2017, NumFOCUS Foundation.
**  Derived, with permission, from the SOFA library.  See notes at end of file.
*/
{
   double a;


/* General accumulated precession in longitude. */
   a = (0.024381750 + 0.00000538691 * t) * t;

   return a;

}
/*----------------------------------------------------------------------
**  
**  
**  Copyright (C) 2013-2017, NumFOCUS Foundation.
**  All rights reserved.
**  
**  This library is derived, with permission, from the International
**  Astronomical Union's "Standards of Fundamental Astronomy" library,
**  available from http://www.iausofa.org.
**  
**  The ERFA version is intended to retain identical functionality to
**  the SOFA library, but made distinct through different function and
**  file names, as set out in the SOFA license conditions.  The SOFA
**  original has a role as a reference standard for the IAU and IERS,
**  and consequently redistribution is permitted only in its unaltered
**  state.  The ERFA version is not subject to this restriction and
**  therefore can be included in distributions which do not support the
**  concept of "read only" software.
**  
**  Although the intent is to replicate the SOFA API (other than
**  replacement of prefix names) and results (with the exception of
**  bugs;  any that are discovered will be fixed), SOFA is not
**  responsible for any errors found in this version of the library.
**  
**  If you wish to acknowledge the SOFA heritage, please acknowledge
**  that you are using a library derived from SOFA, rather than SOFA
**  itself.
**  
**  
**  TERMS AND CONDITIONS
**  
**  Redistribution and use in source and binary forms, with or without
**  modification, are permitted provided that the following conditions
**  are met:
**  
**  1 Redistributions of source code must retain the above copyright
**    notice, this list of conditions and the following disclaimer.
**  
**  2 Redistributions in binary form must reproduce the above copyright
**    notice, this list of conditions and the following disclaimer in
**    the documentation and/or other materials provided with the
**    distribution.
**  
**  3 Neither the name of the Standards Of Fundamental Astronomy Board,
**    the International Astronomical Union nor the names of its
**    contributors may be used to endorse or promote products derived
**    from this software without specific prior written permission.
**  
**  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
**  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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**  FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
**  COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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*/