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/*=============================================================================
*
* WCSLIB - an implementation of the FITS WCS proposal.
* Copyright (C) 1995-2002, Mark Calabretta
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published
* by the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This library 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 Library
* General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street,Fifth Floor, Boston, MA 02110-1301, USA
*
* Correspondence concerning WCSLIB may be directed to:
* Internet email: mcalabre@atnf.csiro.au
* Postal address: Dr. Mark Calabretta,
* Australia Telescope National Facility,
* P.O. Box 76,
* Epping, NSW, 2121,
* AUSTRALIA
*
* Author: Mark Calabretta, Australia Telescope National Facility
* $Id$
*=============================================================================
*
* This version of wcstrig.h is based on the version in wcslib-2.9, but has
* been modified in the following ways by the Starlink project (e-mail:
* ussc@star.rl.ac.uk):
* - Support for non-ANSI C prototypes removed
* - Changed the name of the WCSLIB_TRIG macro to WCSLIB_TRIG_INCLUDED
* - Changed names of degrees trig functions to avoid clashes with
* wcslib.
*===========================================================================*/
#ifndef WCSLIB_TRIG_INCLUDED
#define WCSLIB_TRIG_INCLUDED
#ifdef __cplusplus
extern "C" {
#endif
double astCosd(const double);
double astSind(const double);
double astTand(const double);
double astACosd(const double);
double astASind(const double);
double astATand(const double);
double astATan2d(const double, const double);
/* Domain tolerance for asin and acos functions. */
#define WCSTRIG_TOL 1e-10
#ifdef __cplusplus
};
#endif
#endif /* WCSLIB_TRIG_INCLUDED */
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