The Math::Pari module can evaluate mathematical expressions with a more restricted syntax than perl's -- but watch out for "system()". Here's an example. 
use strict;
use Math::Pari qw(PARI);
 
my $question="67.35 >= 50 && 67.35 < 80";
 
# Pari doesn't like white space in expressions.
$question =~ s/\s+//g;
 
my $out = PARI $question;
print $out,"\n";

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In reply to Re: using re 'eval' for varibable math by tall_man
in thread using re 'eval' for varibable math by Anonymous Monk

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