This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Rational.abs (from ruby core) --- rat.abs -> rational rat.magnitude -> rational --- Returns the absolute value of `rat`. (1/2r).abs #=> (1/2) (-1/2r).abs #=> (1/2) Rational#magnitude is an alias for Rational#abs.
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.