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

to_c 

        # String.to_c

(from ruby core)
---
    str.to_c  ->  complex

---

Returns a complex which denotes the string form.  The parser ignores
leading whitespaces and trailing garbage.  Any digit sequences can be
separated by an underscore.  Returns zero for null or garbage string.

    '9'.to_c           #=> (9+0i)
    '2.5'.to_c         #=> (2.5+0i)
    '2.5/1'.to_c       #=> ((5/2)+0i)
    '-3/2'.to_c        #=> ((-3/2)+0i)
    '-i'.to_c          #=> (0-1i)
    '45i'.to_c         #=> (0+45i)
    '3-4i'.to_c        #=> (3-4i)
    '-4e2-4e-2i'.to_c  #=> (-400.0-0.04i)
    '-0.0-0.0i'.to_c   #=> (-0.0-0.0i)
    '1/2+3/4i'.to_c    #=> ((1/2)+(3/4)*i)
    'ruby'.to_c        #=> (0+0i)

See Kernel.Complex.

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.