childprocess

https://github.com/enkessler/childprocess

Ruby

Cross-platform Ruby library for managing child processes.

Matrix#column

Returns column vector number +j+ of the matrix as a Vector (starting at 0
like an array).  When a block is given, the elements of that vector are
iterated.

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-column-for-pr

# Commit to git

git add git commit -m "better docs for Matrix#column"

# 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-column-for-pr

hub pull-request

# Celebrate!