title: C++ Rounding to the _nths place
body: <p>I'm currently learning c++ on a linux machine. I've got the following code for rounding down or up accordingly but only whole numbers. How would I change this code to round to the hundredths place or any other decimal? I wouldn't ask if I didn't try looking everywhere already :( and some answers seem to have a ton of lines for what seems to be a simple function!</p>
  <pre><code>double round( double ){
  return floor(value + 0.5 );
  }
  </code></pre>