This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Rational.to_r (from ruby core) --- rat.to_r -> self --- Returns self. Rational(2).to_r #=> (2/1) Rational(-8, 6).to_r #=> (-4/3)
This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.