This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# FloatDomainError < RangeError (from ruby core) --- Raised when attempting to convert special float values (in particular `Infinity` or `NaN`) to numerical classes which don't support them. Float::INFINITY.to_r #=> FloatDomainError: Infinity ---
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.