n><span class='op'>/</span><span class='fl'>3</span>
<span class='va'>hx</span><span class='op'>=</span><span class='fu'><a href='https://rdrr.io/r/base/Log.html'>exp</a></span><span class='op'>(</span><span class='va'>fx</span><span class='op'>)</span>
<span class='va'>ty</span><span class='op'>=</span><span class='fu'><a href='https://rdrr.io/r/stats/Exponential.html'>rexp</a></span><span class='op'>(</span><span class='va'>N</span>,<span class='va'>hx</span><span class='op'>)</span>
<span class='va'>tcen