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Diff for /loncom/homework/lonmaxima.pm between versions 1.29 and 1.37

version 1.29, 2010/06/14 11:34:18 version 1.37, 2017/03/07 18:28:02
Line 51  sub maximareply { Line 51  sub maximareply {
  print $socket &escape($cmd)."\n";   print $socket &escape($cmd)."\n";
         my $reply=<$socket>;          my $reply=<$socket>;
         chomp($reply);          chomp($reply);
         if ($reply=~/^Incorrect/) { $reply='Error: '.$reply; }          if ($reply=~/^Incorrect/i) { $reply='Error: '.$reply; }
         return &unescape($reply);          return &unescape($reply);
     } else {      } else {
         return 'Error: no connection.';          return 'Error: no connection.';
Line 155  sub maxima_eval { Line 155  sub maxima_eval {
   
 sub compareterms {  sub compareterms {
     my ($socket,$terma,$termb)=@_;      my ($socket,$terma,$termb)=@_;
     my $difference=$terma.'-('.$termb.')';      my $difference='('.$terma.')-('.$termb.')';
     if (&blacklisted($difference)) { return 'Error: blacklisted'; }      if (&blacklisted($difference)) { return 'Error: blacklisted'; }
     my $reply=&maximareply($socket,'trigsimp(trigreduce('.$difference.'));');      my $reply=&maximareply($socket,'trigsimp(trigreduce('.$difference.'));');
     if ($reply=~/^\s*0\s*$/) { return 'true'; }      if ($reply=~/^\s*0\s*$/) { return 'true'; }
Line 166  sub compareterms { Line 166  sub compareterms {
 sub maxima_check {  sub maxima_check {
     my ($response,$answer,$reterror) = @_;      my ($response,$answer,$reterror) = @_;
     my $socket=&connect();      my $socket=&connect();
     my $reply=&compareterms($socket,$response,$answer);      my $reply=&maximareply($socket,$response.';');
       unless ($reply=~/^Error\:/) {
           $reply=&compareterms($socket,$response,$answer);
       }
     &disconnect($socket);      &disconnect($socket);
     # integer to string mappings come from capaParser.h      # integer to string mappings come from capaParser.h
     # 1 maps to 'EXACT_ANS'      # 1 maps to 'EXACT_ANS'
Removed from v.1.29  
changed lines
  Added in v.1.37

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