--- loncom/homework/default_homework.lcpm	2002/01/30 17:32:05	1.45
+++ loncom/homework/default_homework.lcpm	2002/02/06 16:18:26	1.46
@@ -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 1.45 2002/01/30 17:32:05 albertel Exp $
+# $Id: default_homework.lcpm,v 1.46 2002/02/06 16:18:26 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -445,6 +445,27 @@ sub format {
   return sprintf('%.'.$fmt,$value);
 }
 
+sub prettyprint {
+  my ($value,$fmt)=@_;
+  my $result;
+  if ($fmt) { $value=sprintf('%.'.$fmt,$value); }
+  if ($value =~ /([0-9\.\-\+]+)E([0-9\-\+]+)/ ) {
+    my $frac=$1;
+    my $exponent=$2;
+    $exponent=~s/^\+0*//;
+    if ($external::target eq 'web') {
+      $result=$frac.'&#215;10<sup>'.$exponent.'</sup>';
+    } elsif ($external::target eq 'tex') {
+      $result='\ensuremath{'.$frac.'\times 10^{'.$exponent.'}}';
+    } else {
+      $result=$value;
+    }
+  } else {
+    $result=$value;
+  }
+  return $result;
+}
+
 sub map {
     my ($phrase,$dest,$source)=@_;
     my @seed = &random_seed_from_phrase($phrase);