div><div class="cell"><div class="code-block">[k6] <span class="symbol">=</span> split_key k5
</div></div><div class="cell"><div class="code-block">
</div></div><div class="cell"><div class="code-block">k6
</div><div class="result-block">0x3756f7d71ec688b1</div></div><div class="cell"><div class="code-block">
</div></div><div class="cell"><div class="prose-block"><h2>Probability distributions</h2>
<p><code>rand</code> is used to generate a $U(0,1)$, and <code>randn</code> generates from a standard normal, $