title: How to truncate float values?
body: <p>I want to remove digits from a float to have a fixed number of digits after the dot, like:</p>
  <pre><code>1.923328437452 → 1.923
  </code></pre>
  <p>I need to output as a string to another function, not print.</p>
  <p>Also I want to ignore the lost digits, not round them.</p>