l format is an unsigned integer format and
may be used for <code>integer</code>, <code>real</code>, or <code>complex</code> data. Floating point
numbers are interpreted bit-wise as unsigned integers when written with
the <code>"z"</code> format, preventing any loss of precision in a round-trip
conversion. This format is preferred in data transfers for which
precision losses are intolerable. The <code>"z"</code> format may also be
preferred for faster read/write times and more compact storage.</p>
</div>
<p>