">(</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">)),</span> <span class="n">dim</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
                <span class="n">temp</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">matmul</span><span class="p">(</span><span class="n">A_i</span><span class="p">,</span> <span class="n">torch</span><span class="o">.</span