parate file,
      so that a user invokes them through the familiar library interface.
    </p>

    <p>
      <i>
        This code is a translation of software written in C.  The C code used
        unsigned integers for the underlying SHR3 algorithm.  The FORTRAN77 code
        uses signed integers, and for this reason, the FORTRAN77 version of the
        exponential random number algorithm does not match the C version - that is,
        for the same initial seed value, different results emerge from the