4.3BSD - /usr/src/usr.lib/libF77/z_log.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  *
   6:  *	@(#)z_log.c	5.1	6/7/85
   7:  */
   8: 
   9: #include "complex"
  10: 
  11: z_log(r, z)
  12: dcomplex *r, *z;
  13: {
  14: double log(), cabs(), atan2();
  15: 
  16: r->dimag = atan2(z->dimag, z->dreal);
  17: r->dreal = log( cabs( z->dreal, z->dimag ) );
  18: }

Defined functions