"op">$</span><span class="fu">set_precision</span><span class="op">(</span><span class="fl">2</span><span class="op">)</span><span class="op">$</span><span class="fu">set_sign</span><span class="op">(</span><span class="va">h5const</span><span class="op">$</span><span class="va">H5T_SGN_NONE</span><span class="op">)</span></span></code></pre></div>
<p>Here we use a built-in constant and datatype. All constants can be
accessed using
<strong>h5const<math display="inline" xmlns="http://www.w3.org/1998/Math/Mat