class RangeError: Raised when a given numerical value is out of range.| docs.ruby-lang.org
module Marshal: The marshaling library converts collections of Ruby objects into a byte stream, allowing them to be stored outside the currently active script. This d| docs.ruby-lang.org
module JSON: JavaScript \Object Notation (\JSON) \JSON is a lightweight data-interchange format. tt>.| docs.ruby-lang.org
class Integer: An \Integer object represents an integer value. literals.| docs.ruby-lang.org
class Rational: b (b>0), where a is the numerator and b is the denominator. mathematically.| docs.ruby-lang.org
class Numeric: Numeric is the class from which all higher-level numeric classes should inherit. Numeric allows instantiation of heap-allocated objects.| docs.ruby-lang.org
class Float: A \Float object represents a sometimes-inexact real number using the native architecture's double-precision floating point representation. Floating po| docs.ruby-lang.org
class Complex: i>. en.| docs.ruby-lang.org