--- ray/src/gen/genworm.c	1991/04/23 15:51:15	1.8
+++ ray/src/gen/genworm.c	1993/01/05 10:06:59	2.2
@@ -15,17 +15,15 @@ static char SCCSid[] = "$SunId$ LBL";
  */
 
 #include  <stdio.h>
-
+#include  <math.h>
 #include  "fvect.h"
 
-#define  XNAME		"X_"			/* x function name */
-#define  YNAME		"Y_"			/* y function name */
-#define  ZNAME		"Z_"			/* z function name */
-#define  RNAME		"R_"			/* r function name */
+#define  XNAME		"X`SYS`"		/* x function name */
+#define  YNAME		"Y`SYS`"		/* y function name */
+#define  ZNAME		"Z`SYS`"		/* z function name */
+#define  RNAME		"R`SYS`"		/* r function name */
 
 #define  PI		3.14159265358979323846
-
-#define  FTINY		1e-7
 
 #define  max(a,b)	((a) > (b) ? (a) : (b))