Random

        # Random < base

(from ruby core)
---
Random provides an interface to Ruby's pseudo-random number generator,
or PRNG.  The PRNG produces a deterministic sequence of bits which
approximate true randomness. The sequence may be represented by
integers, floats, or binary strings.

The generator may be initialized with either a system-generated or
user-supplied seed value by using Random.srand.

The class method Random.rand provides the base functionality of
Kernel.rand along with better handling of floating point values. These
are both interfaces to the Ruby system PRNG.

Random.new will create a new PRNG with a state independent of the Ruby
system PRNG, allowing multiple generators with different seed values or
sequence positions to exist simultaneously. Random objects can be
marshaled, allowing sequences to be saved and resumed.

PRNGs are currently implemented as a modified Mersenne Twister with a
period of 2**19937-1.  As this algorithm is *not* for cryptographical
use, you must use SecureRandom for security purpose, instead of this
PRNG.
---
# Constants:

DEFAULT
:   [not documented]


# Class methods:

    bytes
    new
    new_seed
    rand
    seed
    srand
    urandom

# Instance methods:

    ==
    bytes
    rand
    seed