class="op">[</span><span class="fl">1</span><span class="op">]</span><span class="op">*</span><span class="op">(</span><span class="va">pars</span><span class="op">[</span><span class="fl">2</span><span class="op">]</span><span class="op">-</span><span class="va">x</span><span class="op">[</span><span class="va">i</span><span class="op">]</span><span class="op">+</span><span class="va">u.sim</span><span class="op">[</span><span class="va">i</span><span class="op">]</span><span class="op">)</span><span class