title: What is Big O notation? Do you use it?
body: <p>What is Big O notation? Do you use it?</p>
  <p>I missed this university class I guess :D</p>
  <p>Does anyone use it and give some real life examples of where they used it?</p>
  <hr />
  <h3>See also:</h3>
  <p><a href="https://stackoverflow.com/questions/107165/big-o-for-eight-year-olds">Big-O for Eight Year Olds?</a><br />
  <a href="https://stackoverflow.com/questions/3255/big-o-how-do-you-calculateapproximate-it">Big O, how do you calculate/approximate it?</a><br />
  <a href="https://stackoverflow.com/questions/111426/did-you-apply-computational-complexity-theory-in-real-life">Did you apply computational complexity theory in real life?</a></p>