in order to detect unexpected structure indicating correlations between triples. When such structure is present (note that this does not include the expected
bunching of points along the -axis according to the factor in the spherical volume element), numbers may not be
truly random.
Pickover, C. A. Computers and the Imagination. New York: St. Martin's Press, 1991.Pickover,
C. A. "Computers, Randomness, Mind, and Infinity." Ch. 31 in
Keys
to Infinity. New York: W. H. Freeman, pp. 233-247, 1995.Richards,
T. "Graphical Representation of Pseudorandom Sequences." Computers and
Graphics13, 261-262, 1989.
-axis according to the factor 
in the spherical volume element), numbers may not be
truly random.
