childprocess

https://github.com/enkessler/childprocess

Ruby

Cross-platform Ruby library for managing child processes.

Matrix#first_minor

Returns the submatrix obtained by deleting the specified row and column.

  Matrix.diagonal(9, 5, -3, 4).first_minor(1, 2)
    => 9 0 0
       0 0 0
       0 0 4

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-first_minor-for-pr

# Commit to git

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

# 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-first_minor-for-pr

hub pull-request

# Celebrate!