--- loncom/homework/default_homework.lcpm	2000/10/12 20:36:05	1.4
+++ loncom/homework/default_homework.lcpm	2000/10/12 21:51:03	1.5
@@ -66,3 +66,20 @@ sub format {
   my ($value,$fmt)=@_;
   $SCRIPT_RESULT.=sprintf('%.'.$fmt,$value);
 }
+
+sub map {
+  my $num = $#_/2;
+  my $i;
+  for ( $i=1 ; $i<$num+1 ; $i++ ) {
+    ${$_[$i]}=$_[$i+$num]
+  }
+}
+
+sub choose {
+  my $num = $_[0];
+  return $_[$num];
+}
+#$a=2;
+#$b=2;
+#&map(1,\$a,\$b,3,4);
+#print $a."\n".$b."\n";