title: OverflowError: (34, 'Result too large')
body: <p>I'am getting an overflow error(OverflowError: (34, 'Result too large')<br>
  I want to calculate pi to 100 decimals here's my code:</p>
  
  <pre><code>def pi(): 
      pi = 0 
      for k in range(350): 
          pi += (4./(8.*k+1.) - 2./(8.*k+4.) - 1./(8.*k+5.) - 1./(8.*k+6.)) / 16.**k 
      return pi 
  print(pi())
  </code></pre>