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C/C++ Source or Header  |  1986-05-18  |  640 b   |  19 lines
  1. /* 1.0  07-06-84 */
  2. /************************************************************************
  3.  *            Robert C. Tausworthe                *
  4.  *            Jet Propulsion Laboratory            *
  5.  *            Pasadena, CA 91009        1984        *
  6.  ************************************************************************/
  7.  
  8. #include "defs.h"
  9.  
  10. /************************************************************************/
  11.     double
  12. sgn(x)            /* return double sgn function of x        */
  13.  
  14. /*----------------------------------------------------------------------*/
  15. double x;
  16. {
  17.     return SGN(x);
  18. }
  19.