title: How do I fix my python script such that I receive my output in the matrix format?
body: <p>I am new to python and trying to format this output.    </p>
  
  <p>My code:</p>
  
  <pre><code>r1 = 1
  r2 = 2
  r3 = 3
  r4 = 4
  r5 = 5
  for a in ['Interest rate','1%','2%','3%','4%','5%']:
      print (a)
  
  for b in ['Rule of 72 Doubling time in years',72/r1,72/r2,72/r3,72/r4,72/r5]:
      print(b)
  
  for c in ['Actual Doubling time in years','70','36','24','18','15']:
      print(c)
  </code></pre>
  
  <p>However the above code does not print in the matrix type format I desire:</p>
  
  <p>Output I desire:</p>
  
  <pre><code>Interest Rate  Rule of 72     Actual doubling time
  1%              72             70
  2%              36             36
  </code></pre>
  
  <p>How do I change my code or add that I print it as above?</p>