ERRATA for the WELLRNG paper.
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There are a few typos in the paper:
Panneton, L'Ecuyer, and Matsumoto,
``Improved Long-Period Generators Based on Linear Recurrences Modulo 2'',
ACM Transactions on Mathematical Software, 32, 1 (2006), 1-16.
1. The definition of M5 is incorrect in the paper;
the shifts should be in the other direction.
2. In Table II, for the matrices M6, $s$ and $t$
should be permuted.
For the correct definitions and tested implementations,
please refer to the web page:
http://www.iro.umontreal.ca/~panneton/WELLRNG.html
Note also that the implementation technique differs for
WELL44497a and WELL512a, for example.
-- Francois Panneton and Pierre L'Ecuyer, September 2008