/*=============================================================================** 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):* - Changed the name of the WCSLIB_MATH macro to WCSLIB_MATH_INCLUDED*===========================================================================*/#ifndef WCSLIB_MATH_INCLUDED#define WCSLIB_MATH_INCLUDED#ifdef PI#undef PI#endif#ifdef D2R#undef D2R#endif#ifdef R2D#undef R2D#endif#ifdef SQRT2#undef SQRT2#endif#ifdef SQRT2INV#undef SQRT2INV#endif#define PI 3.141592653589793238462643#define D2R PI/180.0#define R2D 180.0/PI#define SQRT2 1.4142135623730950488#define SQRT2INV 1.0/SQRT2#endif /* WCSLIB_MATH_INCLUDED */