code: public static char packSetExponentUnbiasedUnchecked(
      final int e)
    {
      final int eb = e + BIAS;
      final int es = eb << 10;
      final int em = es & MASK_EXPONENT;
      return (char) em;
    }
docs: <p>
  Encode the unbiased exponent {@code e}. Values should be in the
  range {@code [-15, 16]} - values outside of this range will be
  truncated.
  </p>
  
  @param e An exponent
  
  @return A packed exponent
  
  @see #unpackGetExponentUnbiased(char)