ass="co"># one level of nesting (and one can use {} in place</span></span></span>
<span class="r-in"><span><span class="co"># of parens in many places).</span></span></span>
<span class="r-in"><span><span class="fu">sinterp</span><span class="op">(</span><span class="st">"sin(x*(x+1)) is .(sin(x*{x+1}))"</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] "sin(x*(x+1)) is -0.521551002086912"</span>
<span class="r-in"><span></span></span>
<span class="r-in