"n">np</span><span class="o">.</span><span class="n">dot</span><span class="p">(</span><span class="n">centers</span><span class="p">,</span><span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([(</span><span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">theta</span><span class="p">),</span><span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">t