title: Formula to decide if cell is visible
body: <p>Can I use a formula to determine if a cell is not in a hidden row/column?</p>
  
  <p>I know that there are related formulas like subtotal and aggregate, but I don't quite understand those. And subtotal only seems to care about filtered row, not about hidden rows in general.</p>
  
  <p>I'm looking for something like:</p>
  
  <pre><code>=ISVISIBLE(A1)
  </code></pre>
  
  <p>Is it possible combine formulas that arrive at that functionality?</p>