version 1.14, 2001/01/03 00:14:47
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version 1.20, 2001/05/25 21:20:19
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Line 2
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# used by lonxml::xmlparse() as input variable $safeinit to Apache::run::run() |
# used by lonxml::xmlparse() as input variable $safeinit to Apache::run::run() |
# |
# |
# |
# |
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#init some globals |
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#use Math::Trig; |
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# |
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# Guy Albertelli |
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# |
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# 05/25/2001 H. K. Ng |
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# |
$RANDOMINIT=0; |
$RANDOMINIT=0; |
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$pi=atan2(1,1)*4; |
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sub caparesponse_check { |
sub caparesponse_check { |
my $answer=''; #done |
my $answer=''; #done |
my $type=''; #done |
my $type=''; #done |
my $tol_type=''; # gets it's value from whether tol has a % or not done |
my $tol_type=''; # gets it's value from whether tol has a % or not done |
my $tol=''; #done |
my $tol=''; #done |
my $sig=''; |
my $sig=''; #done lowerbnd,upperbnd |
my $sig_lbound=''; |
my $sig_lbound=''; #done |
my $sig_ubound=''; |
my $sig_ubound=''; #done |
my $ans_fmt=''; |
my $ans_fmt=''; |
my $units=''; |
my $units=''; #done |
my $calc=''; |
my $calc=''; |
my ($response,$expr)=@_; |
my ($response,$expr)=@_; |
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Line 69 sub caparesponse_check {
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Line 77 sub caparesponse_check {
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elsif ($result =='12') { $result='WANTED_NUMERIC'; } |
elsif ($result =='12') { $result='WANTED_NUMERIC'; } |
else {$result = "ERROR: Unknown Result:$result:$@:";} |
else {$result = "ERROR: Unknown Result:$result:$@:";} |
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return "$result:$error:$answer:$response:$type|$tol|$tol_type|$sig:$sig_lbound:$sig_ubound|$units"; |
return "$result:<br />Error $error:<br />Answer $answer:<br />Response $response:<br />$type|$tol|$tol_type|$sig:$sig_lbound:$sig_ubound|$units<br />"; |
} |
} |
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sub caparesponse_check_list { |
sub caparesponse_check_list { |
my ($response,$expr)=@_; |
my ($response,$expr)=@_; |
my $result=''; |
my $result=''; |
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my $aresult=''; |
my $current_answer; |
my $current_answer; |
my $answer = eval $expr.';return $answer'; |
my $answer = eval $expr.';return $answer'; |
my (@list) = eval $answer; |
my (@list) = eval $answer; |
my (@responselist)=split /,/,$response; |
my (@responselist)=split /,/,$response; |
($responselist['-1'],my $unit)= split /\s/, $responselist['-1'], 2; |
my $unit=''; |
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$result.="Final response :$responselist['-1']:<br />"; |
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if ( $responselist['-1']=~ /(.*[^\s])\s+([^\s]+)/ ) { |
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$responselist['-1']=$1; |
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$unit=$2; |
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} |
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$result.="Final response :$responselist['-1']:<br />"; |
$unit=~s/\s//; |
$unit=~s/\s//; |
my $i=0; |
my $i=0; |
my $awards=''; |
my $awards=''; |
for ($i=0; $i<@list;$i++) { |
for ($i=0; $i<@list;$i++) { |
$result.=&caparesponse_check($responselist[$i]." $unit", |
if ($unit eq '') { |
$expr.';my $answer='.$list[$i].';'); |
$aresult=&caparesponse_check($responselist[$i], |
my ($temp)=split /:/, $result; |
$expr.';my $answer='.$list[$i].';'); |
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} else { |
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$aresult=&caparesponse_check($responselist[$i]." $unit", |
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$expr.';my $answer='.$list[$i].';'); |
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} |
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my ($temp)=split /:/, $aresult; |
$awards.="$temp,"; |
$awards.="$temp,"; |
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$result.=$aresult; |
} |
} |
chop $awards; |
chop $awards; |
return "$awards:$result"; |
return "$awards:<br />$result"; |
} |
} |
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sub tex { |
sub tex { |
Line 130 sub random {
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Line 151 sub random {
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} |
} |
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sub tan { sin($_[0]) / cos($_[0]) } |
sub tan { sin($_[0]) / cos($_[0]) } |
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sub atan { atan2($_[0], 1); } |
sub acos { atan2(sqrt(1 - $_[0] * $_[0]), $_[0] ); } |
sub acos { atan2(sqrt(1 - $_[0] * $_[0]), $_[0] ); } |
sub asin { atan2($_[0], sqrt(1- $_[0] * $_[0]) ); } |
sub asin { atan2($_[0], sqrt(1- $_[0] * $_[0]) ); } |
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sub log10 { log($_[0])/log(10); } |
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sub factorial { |
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my $input = int(shift); |
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return "Error - unable to take factorial of an negative number ($input)" if $input < 0; |
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return "Error - factorial result is greater than system limit ($input)" if $input > 170; |
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return 1 if $input == 0; |
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my $result = 1; |
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for (my $i=2; $i<=$input; $i++) { $result *= $i } |
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return $result; |
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} |
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sub sgn { |
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return -1 if $_[0] < 0; |
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return 0 if $_[0] == 0; |
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return 1 if $_[0] > 0; |
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} |
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sub min { |
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my @sorted = sort { $a <=> $b || $a cmp $b } @_; |
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return shift @sorted; |
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} |
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sub max { |
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my @sorted = sort { $a <=> $b || $a cmp $b } @_; |
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return pop @sorted; |
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} |
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sub html { |
sub html { |
if ( $external::target eq "web" ) { |
if ( $external::target eq "web" ) { |
Line 139 sub html {
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Line 187 sub html {
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} |
} |
} |
} |
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sub roundto { |
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my ($input,$n) = @_; |
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return sprintf('%.'.$n.'f',$input); |
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} |
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sub to_string { |
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my ($input,$n) = @_; |
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return sprintf('%'.$n,$input) if $n ne ""; |
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return sprintf($input) if $n eq ""; |
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} |
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sub sub_string { |
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my ($str,$start,$len) = @_; |
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return substr($str,$start-1,$len); |
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} |
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sub pow {return $_[0] ** $_[1]; } |
sub pow {return $_[0] ** $_[1]; } |
sub ceil {return (($_[0]-int($_[0]))== 0.0) ? $_[0] : (int($_[0])+ 1); } |
sub ceil {return (($_[0]-int($_[0]))== 0.0) ? $_[0] : (int($_[0])+ 1); } |