Factorial base integer conversion.
https://en.wikipedia.org/wiki/Factorial_number_system
Add this line to your application's Gemfile:
gem 'factoradic'And then execute:
$ bundle install
Or install it yourself as:
$ gem install factoradic
Usage: exe/factoradic [options] <number> [...]
OPTIONS
-i, --input=BASE Interpret input strings in <BASE> format
(valid bases: d, f, decimal, factorial)
-o, --output=BASE Print converted numbers in <BASE> format
(valid bases: d, f, decimal, factorial)
--d2f Shorthand for --input=decimal --output=factorial
--f2d Shorthand for --input=factorial --output=decimal
-s, --separator=CHAR Use <CHAR> as the factorial base position separator
(default: ":")
--[no-]cache Enable/disable caching calculated factorial values.
(default: On)
-h, --help Show this help message
--version Show version
$ factoradic 5:4:3:2:1:0
719
$ factoradic 1:0:0:0:0:0:0
720
$ factoradic 463
3:4:1:0:1:0
$ factoradic --separator=',' 463
3,4,1,0,1,0
$ echo 1:3:0:0:0 | factoradic --f2d -
42
$ ( echo 719 ; echo 720 ) | factoradic --d2f -
5:4:3:2:1:0
1:0:0:0:0:0:0
After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.
Bug reports and pull requests are welcome on GitHub at https://github.com/pdkl95/factoradic.
The gem is available as open source under the terms of the MIT License.