title: Swift Double.remainder(dividingBy:) returning negative value
body: <pre><code>let num = 32.0
  Double(num).remainder(dividingBy: 12.0)
  </code></pre>
  
  <p>I'm getting -4?..instead of 8.0...it's subtracting 12.0 from 8.0</p>
  
  <p>how do i fix this?</p>