This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Complex.arg (from ruby core) --- cmp.arg -> float cmp.angle -> float cmp.phase -> float --- Returns the angle part of its polar form. Complex.polar(3, Math::PI/2).arg #=> 1.5707963267948966
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.