.html#parentheses-for-grouping">view current version</a>.
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<div id="parentheses-for-grouping" class="section level2">
<h2><span class="header-section-number">6.4</span> Parentheses for Grouping</h2>
<p>Any expression wrapped in parentheses is also an expression. Like in
C++, but unlike in R, only the round parentheses, <code>(</code> and
<code>)</code>, are allowed. The square brackets <code>[</code> and <code>]</code> are
reserved for array indexing and the curly braces <code>{</code> and
<code>}</co