 A*X = B when A has been factored by DGEQRF or DGEBQR2.
        </li>
        <li>
          <b>R8GB_PRINT</b> prints an R8GB matrix.
        </li>
        <li>
          <b>R8GB_PRINT_SOME</b> prints some of an R8GB matrix.
        </li>
        <li>
          <b>R8GE_PRINT</b> prints an R8 GE matrix
        </li>
        <li>
          <b>R8GE_PRINT_SOME</b> prints some of an R8 GE matrix.
        </li>
        <li>
          <b>R8VEC_PRINT</b> prints an R8VEC.
        </li>
        <li>
          <b>TIME