--- loncom/interface/entities.pm	2014/06/19 19:18:17	1.20
+++ loncom/interface/entities.pm	2014/08/25 18:02:48	1.21
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # entity -> tex.
 #
-# $Id: entities.pm,v 1.20 2014/06/19 19:18:17 raeburn Exp $
+# $Id: entities.pm,v 1.21 2014/08/25 18:02:48 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -789,7 +789,10 @@ my %entities = (
     'cong'   => '\ensuremath{\cong}',
     8773     => '\ensuremath{\cong}',
     8775     => '\ensuremath{\ncong}',
+    8776     => '\ensuremath{\approx}',
+    'approx' => '\ensuremath{\approx}', 
     8778     => '\ensuremath{\approxeq}',
+    'approxeq' => '\ensuremath{\approxeq}',
     8784     => '\ensuremath{\doteq}',
     8785     => '\ensuremath{\doteqdot}',
     8786     => '\ensuremath{\fallingdotseq}',