8.145. Math::BigRatAllows you to use arbitrarily big rationals. Math::BigRat is shipped with the Perl 5.8 source kit. For example: #!/usr/local/bin/perl -w use Math::BigRat; my $rat = Math::BigRat->new('2/7'); print $rat->bstr(), "\n"; Math::BigRat implements the following methods.
new(value) Creates a new Math::BigRat object. You can use all types of input for new(): '3/5', '2/33', '6/9', etc.
denominator() Returns a copy of the denominator as a positive BigInt: my $rat = Math::BigRat->new('2/7') print $rat->denominator(), "\n"; # Prints 7
numerator() Returns a copy of the numerator as a signed BigInt: my $rat = Math::BigRat->new('2/7'); print $rat->numerator(), "\n"; # Prints 2
parts() Returns a list consisting of a signed numerator and unsigned denominator. Both are BigInts. my($n, $d) = $rat->parts(); ### Ewwww, rat parts! print "numerator: $n\n"; print "denominator: $d\n"; Copyright © 2002 O'Reilly & Associates. All rights reserved. |
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