
          <b>I4_TO_HEX_DIGIT</b> converts a (small) I4 to a hexadecimal digit.
        </li>
        <li>
          <b>I4_TO_ISBN</b> converts an I4 to an ISBN digit.
        </li>
        <li>
          <b>I4_TO_MONTH_ABB</b> returns the 3 character abbreviation of a given month.
        </li>
        <li>
          <b>I4_TO_S_LEFT</b> converts an I4 to a left-justified string.
        </li>
        <li>
          <b>I4_UNIFORM</b> returns a scaled pseudorandom I4.
        </li>
        <li>
          <b>