--- ray/src/common/zeroes.c	1992/10/02 16:21:08	2.2
+++ ray/src/common/zeroes.c	2003/07/17 09:21:29	2.5
@@ -1,20 +1,19 @@
-/* Copyright (c) 1986 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: zeroes.c,v 2.5 2003/07/17 09:21:29 schorsch Exp $";
 #endif
-
 /*
  *  zeroes.c - compute roots for various equations.
  *
- *     8/19/85
+ *  External symbols declared in standard.h
  */
 
+#include "copyright.h"
 
+
 #include  <math.h>
 
 #include  "fvect.h"
-
+#include  "rtmath.h"
 
 int
 quadratic(r, a, b, c)		/* find real roots of quadratic equation */