version 1.54, 2002/11/13 23:05:46
|
version 1.61, 2003/04/30 21:10:50
|
Line 82 sub caparesponse_check {
|
Line 82 sub caparesponse_check {
|
#formula type setup the sample points |
#formula type setup the sample points |
if ($type eq '8') { |
if ($type eq '8') { |
($id_list,$points)=split(/@/,$samples); |
($id_list,$points)=split(/@/,$samples); |
$message.="Found :$points: points\n"; |
$message.="Found :$id_list:$points: points in $samples\n"; |
} |
} |
if ($tol eq '') { |
if ($tol eq '') { |
$tol=0.0; |
$tol=0.0; |
Line 142 sub get_array_args {
|
Line 142 sub get_array_args {
|
} |
} |
$GET_ARRAY_ARGS_result.="error:$@:\n"; |
$GET_ARRAY_ARGS_result.="error:$@:\n"; |
# if the eval fails just use what is in the answer exactly |
# if the eval fails just use what is in the answer exactly |
if (!defined(@GET_ARRAY_ARGS_list) || !defined($GET_ARRAY_ARGS_list[0])) { |
if (!(@GET_ARRAY_ARGS_list) || !defined($GET_ARRAY_ARGS_list[0])) { |
$GET_ARRAY_ARGS_result.="list zero is undefined\n"; |
$GET_ARRAY_ARGS_result.="list zero is undefined\n"; |
$GET_ARRAY_ARGS_list[0]=$CAPARESPONSE_CHECK_LIST_answer; |
$GET_ARRAY_ARGS_list[0]=$CAPARESPONSE_CHECK_LIST_answer; |
} |
} |
Line 151 sub get_array_args {
|
Line 151 sub get_array_args {
|
|
|
sub caparesponse_check_list { |
sub caparesponse_check_list { |
my ($response,$expr)=@_; |
my ($response,$expr)=@_; |
my $result; |
$expr =~ s/\\/\\\\/g; |
|
$expr =~ s/\'/\\\'/g; |
my ($result,@list) = &get_array_args($expr,'answer'); |
my ($result,@list) = &get_array_args($expr,'answer'); |
my $aresult=''; |
my $aresult=''; |
my $current_answer; |
my $current_answer; |
Line 180 sub caparesponse_check_list {
|
Line 181 sub caparesponse_check_list {
|
my $awards=''; |
my $awards=''; |
for ($i=0; $i<@list;$i++) { |
for ($i=0; $i<@list;$i++) { |
$result.="trying answer :$list[$i]:\n"; |
$result.="trying answer :$list[$i]:\n"; |
|
my $thisanswer=$list[$i]; |
|
$thisanswer=~ s/\\/\\\\/g; |
|
$thisanswer =~ s/\'/\\\'/g; |
if ($unit eq '') { |
if ($unit eq '') { |
$aresult=&caparesponse_check($responselist[$i], |
$aresult=&caparesponse_check($responselist[$i], |
$expr.';my $answer=\''.$list[$i].'\';'); |
$expr.';my $answer=\''.$thisanswer.'\';'); |
} else { |
} else { |
$aresult=&caparesponse_check($responselist[$i]." $unit", |
$aresult=&caparesponse_check($responselist[$i]." $unit", |
$expr.';my $answer=\''.$list[$i].'\';'); |
$expr.';my $answer=\''.$thisanswer.'\';'); |
} |
} |
my ($temp)=split /:/, $aresult; |
my ($temp)=split /:/, $aresult; |
$awards.="$temp,"; |
$awards.="$temp,"; |
Line 197 sub caparesponse_check_list {
|
Line 201 sub caparesponse_check_list {
|
|
|
sub tex { |
sub tex { |
if ( $external::target eq "tex" ) { |
if ( $external::target eq "tex" ) { |
return @_[0]; |
return $_[0]; |
} else { |
} else { |
return @_[1]; |
return $_[1]; |
} |
} |
} |
} |
|
|
sub var_in_tex { |
sub var_in_tex { |
if ( $external::target eq "tex" ) { |
if ( $external::target eq "tex" ) { |
return @_[0]; |
return $_[0]; |
} else { |
} else { |
return ""; |
return ""; |
} |
} |
Line 213 sub var_in_tex {
|
Line 217 sub var_in_tex {
|
|
|
sub web { |
sub web { |
if ( $external::target eq "tex" ) { |
if ( $external::target eq "tex" ) { |
return @_[1]; |
return $_[1]; |
} else { |
} else { |
if ( $external::target eq "web" || $external::target eq "answer") { |
if ( $external::target eq "web" || $external::target eq "answer") { |
return @_[2]; |
return $_[2]; |
} else { |
} else { |
return @_[0]; |
return $_[0]; |
} |
} |
} |
} |
} |
} |
Line 229 sub html {
|
Line 233 sub html {
|
} |
} |
} |
} |
|
|
sub problem { |
|
return '1'; |
|
} |
|
|
|
sub hinton { |
sub hinton { |
return 0; |
return 0; |
} |
} |
|
|
sub random { |
sub random { |
my ($start,$end,$step)=@_; |
my ($start,$end,$step)=@_; |
if ( ! $hidden::RANDOMINIT ) { |
if ( ! $hidden::RANDOMINIT ) { |
&random_set_seed(1,$external::randomseed); |
if ($external::randomseed == 0) { $external::randomseed=1; } |
&math_random_uniform(); |
if ($external::randomseed =~/,/) { |
$hidden::RANDOMINIT=1; |
my ($num1,$num2)=split(/,/,$seed); |
} |
&random_set_seed(abs($num1),abs($num2)); |
if (!defined($step)) { $step=1; } |
} else { |
my $num=1+int(($end-$start)/$step); |
&random_set_seed(1,int(abs($external::randomseed))); |
my $result=$start + int(&math_random_uniform() * $num)*$step; |
} |
return $result; |
&math_random_uniform(); |
|
$hidden::RANDOMINIT=1; |
|
} |
|
if (!defined($step)) { $step=1; } |
|
my $num=1+int(($end-$start)/$step); |
|
my $result=$start + int(&math_random_uniform() * $num)*$step; |
|
return $result; |
} |
} |
|
|
sub random_normal { |
sub random_normal { |
Line 418 sub log { log(shift) }
|
Line 424 sub log { log(shift) }
|
sub atan2 { atan2($_[0],$_[1]) } |
sub atan2 { atan2($_[0],$_[1]) } |
sub sqrt { sqrt(shift) } |
sub sqrt { sqrt(shift) } |
|
|
sub tan { sin($_[0]) / cos($_[0]) } |
sub tan { CORE::sin($_[0]) / CORE::cos($_[0]) } |
#sub atan { atan2($_[0], 1); } |
#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] * $_[0]) ); } |
|
|
sub log10 { log($_[0])/log(10); } |
sub log10 { CORE::log($_[0])/CORE::log(10); } |
|
|
sub factorial { |
sub factorial { |
my $input = int(shift); |
my $input = CORE::int(shift); |
return "Error - unable to take factorial of an negative number ($input)" if $input < 0; |
return "Error - unable to take factorial of an negative number ($input)" if $input < 0; |
return "Error - factorial result is greater than system limit ($input)" if $input > 170; |
return "Error - factorial result is greater than system limit ($input)" if $input > 170; |
return 1 if $input == 0; |
return 1 if $input == 0; |
Line 469 sub sub_string {
|
Line 475 sub sub_string {
|
} |
} |
|
|
sub pow {return $_[0] ** $_[1]; } |
sub pow {return $_[0] ** $_[1]; } |
sub ceil {return (($_[0]-int($_[0]))== 0.0) ? $_[0] : (($_[0] > 0) ? (int($_[0])+ 1) : int($_[0])); } |
sub ceil {return (($_[0]-CORE::int($_[0]))== 0.0) ? $_[0] : (($_[0] > 0) ? (CORE::int($_[0])+ 1) : CORE::int($_[0])); } |
sub floor {return (($_[0]-int($_[0]))== 0.0) ? $_[0] : (($_[0] > 0) ? int($_[0]) : (int($_[0])-1)); } |
sub floor {return (($_[0]-CORE::int($_[0]))== 0.0) ? $_[0] : (($_[0] > 0) ? CORE::int($_[0]) : (CORE::int($_[0])-1)); } |
#sub floor {return int($_[0]); } |
#sub floor {return int($_[0]); } |
|
|
sub format { |
sub format { |
Line 566 sub map {
|
Line 572 sub map {
|
} |
} |
} |
} |
} |
} |
&random_set_seed(@seed); |
&random_set_seed(@oldseed); |
return ''; |
return ''; |
} |
} |
|
|
Line 713 sub array_moments {
|
Line 719 sub array_moments {
|
$kurt+=$x**4; |
$kurt+=$x**4; |
} |
} |
$output[2]=$var/($N-1); |
$output[2]=$var/($N-1); |
$sdev=sqrt($output[2]); |
$sdev=CORE::sqrt($output[2]); |
if ($sdev == 0) { |
if ($sdev == 0) { |
$output[3]="inf-variance=0"; |
$output[3]="inf-variance=0"; |
$output[4]="inf-variance=0"; |
$output[4]="inf-variance=0"; |