an class="special">;</span>
<span class="keyword">while</span><span class="special">(</span> <span class="keyword">true</span> <span class="special">)</span>
<span class="special">{</span>

    <span class="identifier">t</span> <span class="special">=</span> <span class="identifier">integrate_n_steps</span><span class="special">(</span> <span class="identifier">rk4</span> <span class="special">,</span> <span class="identifier">lorenz_with_lyap</span> <span class="special">,</span> <span class="identifier">x