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 exponentiation.

    Rational(2)    ** Rational(3)     #=> (8/1)
    Rational(10)   ** -2              #=> (1/100)
    Rational(10)   ** -2.0            #=> 0.01
    Rational(-4)   ** Rational(1, 2)  #=> (0.0+2.0i)
    Rational(1, 2) ** 0               #=> (1/1)
    Rational(1, 2) ** 0.0             #=> 1.0

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.