Copyright

       A C-program for MT19937, with initialization improved 2002/2/10.
       Coded by Takuji Nishimura and Makoto Matsumoto.
       This is a faster version by taking Shawn Cokus's optimization,
       Matthe Bellew's simplification, Isaku Wada's real version.

       Before using, initialize the state by using init_genrand(seed)
       or init_by_array(init_key, key_length).

       Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
       All rights reserved.

       Redistribution and use in source and binary forms, with or without
       modification, are permitted provided that the following conditions
       are met:

         1. Redistributions of source code must retain the above copyright
            notice, this list of conditions and the following disclaimer.

         2. Redistributions in binary form must reproduce the above copyright
            notice, this list of conditions and the following disclaimer in the
            documentation and/or other materials provided with the distribution.

         3. The names of its contributors may not be used to endorse or promote
            products derived from this software without specific prior written
            permission.

       THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
       "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
       LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
       A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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       EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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       Any feedback is very welcome.
       http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html
       email: m-mat @ math.sci.hiroshima-u.ac.jp (remove space)