title: Correct way to test if Single values equal Nothing
body: <p>The following line of code gives a warning with Resharper: 'Comparison of floating point numbers with equality operator. Possible loss of precision while rounding values.'</p>
  
  <pre><code>Dim samples() As Single
  
  If samples(i) = Nothing Then
      samples(i) = _mPreviousSamples(i)
  End If
  </code></pre>
  
  <p>What is the best way of checking if a value is present?</p>