Since this paper discusses
mathematics and does not explain how to use the code, it is not
easy to see that, for the computer experiments
presented in this paper,
there is very little which needs to be typed.
For example,
when performing the computations in
§, one
would *not* type in the 5 equations of
(§).
One instead would type in the 2 × 2
matrix and tell the computer that it
is an isometry and that *U* is unitary.

Wed Jul 3 10:27:42 PDT 1996