childprocess

https://github.com/enkessler/childprocess

Ruby

Cross-platform Ruby library for managing child processes.

Matrix.[]

Creates a matrix where each argument is a row.
  Matrix[ [25, 93], [-1, 66] ]
     =>  25 93
         -1 66

Source | Google | Stack overflow

Edit

git clone [email protected]:enkessler/childprocess.git
cd childprocess
open

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-Matrix----for-pr

# Commit to git
git add git commit -m "better docs for Matrix.[]"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-Matrix----for-pr
hub pull-request

# Celebrate!