an><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">array([[0,</span> <span class="pre">0],</span> <span class="pre">[3,</span> <span class="pre">3]])</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">sd</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">seed</span></span><span class="o"><span class="pre