 /*
  * Khoros: $Id: bess.c,v 1.1 1991/05/10 15:41:26 khoros Exp $
  */

#if !defined(lint) && !defined(SABER)
static char rcsid[] = "Khoros: $Id: bess.c,v 1.1 1991/05/10 15:41:26 khoros Exp $";
#endif

 /*
  * $Log: bess.c,v $
 * Revision 1.1  1991/05/10  15:41:26  khoros
 * Initial revision
 *
  */ 

/*
 *----------------------------------------------------------------------
 *
 * Copyright 1990, University of New Mexico.  All rights reserved.
 * 
 * Permission to copy and modify this software and its documen-
 * tation only for internal use in your organization is hereby
 * granted, provided that this notice is retained thereon and
 * on all copies.  UNM makes no representations as too the sui-
 * tability and operability of this software for any purpose.
 * It is provided "as is" without express or implied warranty.
 * 
 * UNM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
 * NESS.  IN NO EVENT SHALL UNM BE LIABLE FOR ANY SPECIAL,
 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY OTHER DAMAGES WHAT-
 * SOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PER-
 * FORMANCE OF THIS SOFTWARE.
 * 
 * No other rights, including for example, the right to redis-
 * tribute this software and its documentation or the right to
 * prepare derivative works, are granted unless specifically
 * provided in a separate license agreement.
 *----------------------------------------------------------------------
 */

#include "unmcopyright.h"	 /* Copyright 1990 by UNM */

/***********************************************************************
*
*  Routine Name: bess()
*
*          Date:
*        
*       Purpose: evaluates some bessel function 
*
*         Input: 
*
*        Output: 
*
*    Written By: anonymous 
*
* Modifications:
*
***********************************************************************/

double bess( num )
double num;
{
  int i;
  double fact(), dpower(), bessel;

  bessel = 1.0;
  for ( i = 1; i <= 10; i++ )
  {
    bessel = bessel + dpower((1.0/fact((double)i))*dpower((double)(num/2),i),2);
  }
  return(bessel); 
}
       

