title: How to get 1 decimal Float in swift
body: <p>I want to extract 1 decimal float number from existing float number. </p>
  
  <p>I have done this in Objective-C:
  <a href="https://stackoverflow.com/questions/560517/make-a-float-only-show-two-decimal-places">Make a float only show two decimal places</a></p>
  
  <p><strong>Any idea how to make it happen in Swift?</strong></p>