version 1.163, 2013/01/21 06:16:50
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version 1.167, 2014/06/25 10:48:39
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Line 1033 sub format_significant_figures {
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Line 1033 sub format_significant_figures {
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$number = abs($number); |
$number = abs($number); |
# needed to correct for a number greater than 1 (or |
# needed to correct for a number greater than 1 (or |
my $power = ($number < 1) ? 0 : 1; |
my $power = ($number < 1) ? 0 : 1; |
if ($power && $number =~ /^\d+$/) { |
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my $nonzeros = $number; |
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$nonzeros =~ s/0+$//; |
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if (length($number) - length($nonzeros) > 1) { |
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# convert to exponential form |
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my $n = $sig-1; |
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my $numSig = sprintf('%.' . $n . 'E', $number); |
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# return number with sign |
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return $sign.$numSig; |
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} |
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} |
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# could round up. Take the integer part of log10. |
# could round up. Take the integer part of log10. |
my $x10 = int(log($number)/log(10)); |
my $x10 = int(log($number)/log(10)); |
# find number with values left of decimal pt = # of sign figs. |
# find number with values left of decimal pt = # of sign figs. |
Line 1054 sub format_significant_figures {
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Line 1043 sub format_significant_figures {
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my ($zeros) = ($xint =~ /(0+)$/); |
my ($zeros) = ($xint =~ /(0+)$/); |
# return number to original magnitude |
# return number to original magnitude |
my $numSig = $xint*10**($x10-$sig+$power); |
my $numSig = $xint*10**($x10-$sig+$power); |
# insert trailing zero's if have decimal point |
if ($numSig =~ /^(\d+)\.(\d+)/) { |
$numSig =~ s/^(\d+)\.(\d+)(\e?(.*)?)$/$1\.$2$zeros$3/; |
# insert trailing zero's if have decimal point |
# put a decimal pt for number ending with 0 and length = # of sig fig |
my @digarray = split('',$1.$2); |
$numSig.='.' if (length($numSig) == $sig && $numSig =~ /0$/); |
my $sigcount; |
if (length($numSig) < $sig) { |
while (@digarray > 0) { |
$numSig.='.'.substr($zeros,0,($sig-length($numSig))); |
my $item = shift(@digarray); |
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if ($item) { |
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$sigcount = 1 + @digarray; |
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last; |
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} |
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} |
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if (($sigcount) && ($sig >= $sigcount)) { |
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$zeros = substr($zeros,0,($sig - $sigcount)); |
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} |
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$numSig =~ s/^(\d+)\.(\d+)(\e?(.*)?)$/$1\.$2$zeros$3/; |
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} else { |
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if ($numSig =~ /^(\d+)e([\+\-]\d+)$/i) { |
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my $pre_exp = $1; |
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my $exponent = $2; |
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$numSig = $pre_exp.'.'.$zeros.'E'.$exponent; |
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} elsif ($numSig =~ /0$/) { |
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# add decimal pt for number ending with 0 and length == # of sig figs |
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if (length($numSig) == $sig) { |
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$numSig.='.'; |
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} elsif (length($numSig) > $sig) { |
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# exponential form for number ending with 0 and length > # of sig figs |
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my $fmtsig = $sig-1; |
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if ($fmtsig) { |
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$numSig = sprintf('%.'.$fmtsig.'E',$numSig); |
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} |
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} elsif (length($numSig) < $sig) { |
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$numSig.='.'.substr($zeros,0,($sig-length($numSig))); |
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} |
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} else { |
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if (length($numSig) < $sig) { |
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$numSig.='.'.substr($zeros,0,($sig-length($numSig))); |
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} |
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} |
} |
} |
# return number with sign |
# return number with sign |
return $sign.$numSig; |
return $sign.$numSig; |
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} |
} |
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sub map { |
sub map { |
Line 1208 sub sec {
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Line 1228 sub sec {
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} |
} |
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sub submission { |
sub submission { |
my ($partid,$responseid,$subnumber)=@_; |
my ($partid,$responseid,$subnumber,$encode)=@_; |
my $sub=''; |
my $sub=''; |
if ($subnumber) { $sub=$subnumber.':'; } |
if ($subnumber) { $sub=$subnumber.':'; } |
return &EXT('user.resource.'.$sub.'resource.'.$partid.'.'.$responseid.'.submission'); |
my $output = |
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&EXT('user.resource.'.$sub.'resource.'.$partid.'.'.$responseid.'.submission'); |
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if ($encode) { |
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$output =~ s/&/&/g; |
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$output =~ s/</</g; |
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$output =~ s/>/>/g; |
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$output =~ s/"/"/g; |
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} |
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return $output; |
} |
} |
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sub currentpart { |
sub currentpart { |