;$this.pyfunc = op(x=0){$py().eval(&#39;pyfunc&#39;, {&#39;x&#39;:x});};&quot;</span><span class="p">)</span>
<span class="n">xy</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="s2">&quot;pyfunc(5);&quot;</span><span class="p">)</span>  <span class="c1"># Output: Python saw: 5</span>
</code></pre></div></p>
<hr />
<h2 id="3-high-precision-math-scientific-computing-verified">3. High-Precision Math &amp; Scientific Computing (Verified)</h2>
<p><strong>Example: Unli