--- loncom/homework/caparesponse/caparesponse.pm	2016/02/18 18:40:05	1.257
+++ loncom/homework/caparesponse/caparesponse.pm	2016/08/09 23:43:45	1.258
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # caparesponse definition
 #
-# $Id: caparesponse.pm,v 1.257 2016/02/18 18:40:05 raeburn Exp $
+# $Id: caparesponse.pm,v 1.258 2016/08/09 23:43:45 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -894,7 +894,7 @@ sub get_table_sizes {
     my $cell_width=0;
     foreach my $member (@$rbubble_values) {
 	my $cell_width_real=0;
-	if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) {
+	if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^\{(\+|-)?(\d+)}\$?/) {
 	    $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
 	} elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
 	    $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;