This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Numeric.rect (from ruby core) --- rect() --- Returns an array; [num, 0]. (This method is an alias for Numeric#rectangular.) Returns an array; [num, 0].
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.