This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.

positive?

        # Rational.positive?

(from ruby core)
---
    rat.positive?  ->  true or false

---

Returns `true` if `rat` is greater than 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.