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/* cassbeam - a Cassegrain antenna simulator
Copyright (C) August 18, 2003 Walter Brisken
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 of the License, 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*/
#ifndef __MATHFUNC_H__
#define __MATHFUNC_H__
#include <math.h>
#ifndef M_SQRT3
#define M_SQRT3 1.73205075688772935
#endif
#ifndef C_EULER
#define C_EULER 0.57721566490153286
#endif
double pythag(double a, double b);
double bessel_J0(double x);
double bessel_J1(double x);
double bessel_Y0(double x);
double bessel_Y1(double x);
double bessel_I0(double x);
double logbessel_I0(double x);
double bessel_I1(double x);
double bessel_K0(double x);
double bessel_K1(double x);
double cubic(double p, double q, double r);
int quarticroots(double a, double b, double c, double d, double *rts);
#endif
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