">int -&gt; <a href="Num.html#TYPEnum">num</a> -&gt; string</code></pre><div class="info ">
See <a href="Num.html#VALapprox_num_exp"><code class="code"><span class="constructor">Num</span>.approx_num_exp</code></a>.<br>
</div>

<pre><span id="VALapprox_num_exp"><span class="keyword">val</span> approx_num_exp</span> : <code class="type">int -&gt; <a href="Num.html#TYPEnum">num</a> -&gt; string</code></pre><div class="info ">
Approximate a number by a decimal. The first argument is the
   required precision. 