Computation of Zeros
v Odlyzko’s fantastic computation of  10^k+1
through 10^k+10,000 for k=12,21,22.
See http://www.research.att.com/~amo/zeta_tables/
Spacings behave like the eigenvalues of
A=randn(n)+i*randn(n); S=(A+A’)/2;