diff --git a/tracy/tracy/src/physlib.cc b/tracy/tracy/src/physlib.cc
index 22c2e4c83810d4d2594809fae5c84d2e18a496e6..94187e08893a608325de876d7f5c0b289f62c0ec 100644
--- a/tracy/tracy/src/physlib.cc
+++ b/tracy/tracy/src/physlib.cc
@@ -6,9 +6,9 @@
  L. Nadolski   SOLEIL        2002          Link to NAFF, Radia field maps
  J. Bengtsson  NSLS-II, BNL  2004 -
  */
-/* Current revision $Revision: 1.15 $
+/* Current revision $Revision: 1.16 $
  On branch $Name: not supported by cvs2svn $
- Latest change by $Author: zhang $
+ Latest change by $Author: nadolski $
 */
 
 /**************************/
@@ -2644,7 +2644,7 @@ void GetChromTrac(long Nb, long Nbtour, double emax, double *xix, double *xiy) {
     int i = 0;
     double Tab[6][NTURN], fx[nterm], fy[nterm], nux1, nux2, nuy1, nuy2;
 
-    double x = 1e-6, xp = 0.0, y = 1e-6, yp = 0.0;
+    double x  = 1e-6, xp  = 0.0, y  = 1e-6, yp  = 0.0;
     double x0 = 1e-6, xp0 = 0.0, y0 = 1e-6, yp0 = 0.0;
     //double xixExtra = 0.0, xizExtra= 0.0, xixhalf= 0.0, xizhalf= 0.0;
     //double nux3 = 0.0, nux4 = 0.0, nuz3 = 0.0, nuz4 = 0.0;
@@ -2679,9 +2679,9 @@ void GetChromTrac(long Nb, long Nbtour, double emax, double *xix, double *xiy) {
                 nux1, nuy1);
 
     /* Tracking for delta = -emax and computing tunes */
-    x = x0;
+    x  = x0;
     xp = xp0;
-    y = y0;
+    y  = y0;
     yp = yp0;
 
     Trac_Simple4DCOD(x, xp, y, yp, -emax, 0.0, Nbtour, Tab, &status);
@@ -2693,7 +2693,7 @@ void GetChromTrac(long Nb, long Nbtour, double emax, double *xix, double *xiy) {
                 Tab[1][Nbtour - 1], Tab[2][Nbtour - 1], Tab[3][Nbtour - 1],
                 Tab[4][Nbtour - 1], Tab[5][Nbtour - 1]);
 
-    nux2 = (fabs(fx[0]) > 1e-8 ? fx[0] : fx[1]);
+    nux2 = (fabs(fx[0]) > ZERO ? fx[0] : fx[1]);
     nuy2 = fy[0];
 
     if (trace)