--- loncom/homework/default_homework.lcpm	2012/11/22 02:15:42	1.152.2.3
+++ loncom/homework/default_homework.lcpm	2012/11/21 23:22:43	1.162
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # used by lonxml::xmlparse() as input variable $safeinit to Apache::run::run()
 #
-# $Id: default_homework.lcpm,v 1.152.2.3 2012/11/22 02:15:42 raeburn Exp $
+# $Id: default_homework.lcpm,v 1.162 2012/11/21 23:22:43 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -253,8 +253,6 @@ sub caparesponse_check {
     elsif ($result =='15') { $result='UNIT_IRRECONCIBLE'; }
     else  {$result = "ERROR: Unknown Result:$result:$@:";}
 
-#    &LONCAPA_INTERNAL_DEBUG("RetError $reterror: Answer $answer: Response $response:  type-$type|$tol|$tol_type|$sig:$sig_lbound:$sig_ubound|$unit|");
-#    &LONCAPA_INTERNAL_DEBUG(" $answer $response $result ");
     return ($result,$reterror);
 }
 
@@ -265,7 +263,7 @@ sub caparesponse_check_list {
     my $type = $LONCAPA::CAPAresponse_args{'type'};
     my $answerunit=$LONCAPA::CAPAresponse_args{'unit'};
     &LONCAPA_INTERNAL_DEBUG("Got type :$type: answer unit :$answerunit:\n");
-    
+   
     my $preprocess=$LONCAPA::CAPAresponse_args{'preprocess'};
     $preprocess=~s/^\&//;
 
@@ -309,9 +307,10 @@ sub caparesponse_check_list {
     my ($allowalgebra)=($LONCAPA::CAPAresponse_args{'allowalgebra'}=~/^(yes|1|on)$/i);
     if ($type eq 'float' || $type eq '') {
 	#for numerical problems split off the unit
-        my ($part1,$part2);
+        my $part1;
+        my $part2;
         if ($allowalgebra) {
-           ($part1,$part2)=($responses->[0][-1]=~ /^(.*[^\s])\s+([^\s]+)$/);
+           ($part1,$part2)=($responses->[0][-1]=~ /^(.*[^\s])\s+([^\s]+)$/); 
         } else {
            ($part1,$part2)=($responses->[0][-1]=~ /^([\d\.\,\s\$]*(?:(?:[xX\*]10[\^\*]*|[eE]*)[\+\-]*\d*)*(?:^|\S)\d+)([\$\s\w\^\*\/\(\)\+\-]*[^\d\.\s\,][\$\s\w\^\*\/\(\)\+\-]*)$/);
         }
@@ -1184,7 +1183,7 @@ sub middlename {
     $middlename = '' if $middlename eq "";
     return $middlename;
 }
-                                                                                
+
 sub lastname {
     my $lastname = &EXT('environment.lastname');
     $lastname = '' if $lastname eq "";