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

** 

        # Float.**

(from ruby core)
---
    self ** other -> numeric

---

Raises `self` to the power of `other`:

    f = 3.14
    f ** 2              # => 9.8596
    f ** -2             # => 0.1014239928597509
    f ** 2.1            # => 11.054834900588839
    f ** Rational(2, 1) # => 9.8596
    f ** Complex(2, 0)  # => (9.8596+0i)

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.