This is Perl module Number::Object.

INSTALLATION

Number::Object installation is straightforward. If your CPAN shell is set up,
you should just be able to do

    % cpan Number::Object

Download it, unpack it, then build it as per the usual:

    % perl Makefile.PL
    % make && make test

Then install it:

    % make install

DOCUMENTATION

Number::Object documentation is available as in POD. So you can do:

    % perldoc Number::Object

to read the documentation online with your favorite pager.

Kazuhiro Osawa