--- a/inst/bvp4c.m
+++ b/inst/bvp4c.m
@@ -99,7 +99,7 @@
       du_est(nn,:) = diff(u(nn,:))./h;
     end
 
-    err    = max(abs(f_est-du_est)); semilogy(tm,err), pause(.1)
+    err    = max(abs(f_est-du_est));
     AbsErr = max(err)
     RelErr = AbsErr/norm(du,inf)