| Name : perl-Number-Fraction
| |
| Version : 3.1.0
| Vendor : obs://build_opensuse_org/devel:languages:perl
|
| Release : lp154.1.1
| Date : 2024-02-26 07:06:22
|
| Group : Unspecified
| Source RPM : perl-Number-Fraction-3.1.0-lp154.1.1.src.rpm
|
| Size : 0.03 MB
| |
| Packager : https://www_suse_com/
| |
| Summary : Perl extension to model fractions
|
Description :
Number::Fraction allows you to work with fractions (i.e. rational numbers)
in your Perl programs in a very natural way.
It was originally written as a demonstration of the techniques of
overloading.
If you use the module in your program in the usual way
use Number::Fraction;
you can then create fraction objects using \'Number::Fraction-\'new> in a
number of ways.
my $f1 = Number::Fraction->new(1, 2);
creates a fraction with a numerator of 1 and a denominator of 2.
my $fm = Number::Fraction->new(1, 2, 3);
creates a fraction from an integer of 1, a numerator of 2 and a denominator
of 3; which results in a fraction of 5/3 since fractions are normalised.
my $f2 = Number::Fraction->new(\'1/2\');
does the same thing but from a string constant.
my $f3 = Number::Fraction->new($f1);
makes \'$f3\' a copy of \'$f1\'
my $f4 = Number::Fraction->new; # 0/1
creates a fraction with a denominator of 0 and a numerator of 1.
If you use the alternative syntax of
use Number::Fraction \':constants\';
then Number::Fraction will automatically create fraction objects from
string constants in your program. Any time your program contains a string
constant of the form \'\\d+/\\d+\' then that will be automatically replaced
with the equivalent fraction object. For example
my $f1 = \'1/2\';
Having created fraction objects you can manipulate them using most of the
normal mathematical operations.
my $one = $f1 + $f2;
my $half = $one - $f1;
Additionally, whenever a fraction object is evaluated in a string context,
it will return a string in the format x/y. When a fraction object is
evaluated in a numerical context, it will return a floating point
representation of its value.
Fraction objects will always \"normalise\" themselves. That is, if you create
a fraction of \'2/4\', it will silently be converted to \'1/2\'.
|
RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/perl:/CPAN-N/15.4/noarch |
