title: How can I apply a math operation on a list of tuples with `map()`?
body: <p>I have a list of tuples</p>
  
  <pre><code>b = [('676010', '5036043'), ('771968', '4754525'), ('772025', '4754525'), ('772072', '4754527'), ('772205', '4754539'), ('772276', '4754542'), ('772323', '4754541'), ('647206', '5036049')]
  </code></pre>
  
  <p>I'm using <code>map()</code> to convert them to type <code>float</code>.</p>
  
  <pre><code>In [45]: print [map(float,e) for e in b]
  [[676010.0, 5036043.0], [771968.0, 4754525.0], [772025.0, 4754525.0], [772072.0, 4754527.0], [772205.0, 4754539.0], [772276.0, 4754542.0], [772323.0, 4754541.0], [647206.0, 5036049.0]]
  </code></pre>
  
  <p>How can I apply a math operation on the elements with <code>map()</code>, let's say divide by 100,000?</p>
  
  <p>I know to get there in a different way, but how do I achieve this with <code>map()</code>?</p>
  
  <pre><code>In [46]: print [(float(tup[0])/100000,float(tup[1])/100000) for tup in b]
  [(6.7601, 50.36043), (7.71968, 47.54525), (7.72025, 47.54525), (7.72072, 47.54527), (7.72205, 47.54539), (7.72276, 47.54542), (7.72323, 47.54541), (6.47206, 50.36049)]
  </code></pre>