This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Rational.+ (from ruby core) --- rat + numeric -> numeric --- Performs addition. Rational(2, 3) + Rational(2, 3) #=> (4/3) Rational(900) + Rational(1) #=> (901/1) Rational(-2, 9) + Rational(-9, 2) #=> (-85/18) Rational(9, 8) + 4 #=> (41/8) Rational(20, 9) + 9.8 #=> 12.022222222222222
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.