title: Convert Int to Double in Swift
body: <pre><code>label.text = String(format:"%.1f hour", theOrder.bookingMins/60.0)
  </code></pre>
  
  <p>The above code just get the error:<code>'Int' is not convertible to 'Double'</code></p>
  
  <p><code>bookingMins</code> is of type Int, so how do I convert an Int to a Double in Swift? Seems not as simple as in C.</p>