elasticsearch-ruby

https://github.com/elastic/elasticsearch-ruby

Ruby

Ruby integrations for Elasticsearch

Vector#angle_with

Returns an angle with another vector. Result is within the [0...Math::PI].
  Vector[1,0].angle_with(Vector[0,1])
  # => Math::PI / 2

Source | Google | Stack overflow

Edit

git clone [email protected]:elastic/elasticsearch-ruby.git
cd elasticsearch-ruby
open

Contribute

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

# Commit to git
git add git commit -m "better docs for Vector#angle_with"

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

# Celebrate!