title: Learning Postfix
body: <p>While I was going through the postfix at this <a href="http://interactivepython.org/runestone/static/pythonds/BasicDS/InfixPrefixandPostfixExpressions.html#tbl-example1" rel="nofollow">site</a> I'm just confused as after the definition of infix prefix and postfox it explains its rule that how to apply postfix, as it completely says: <strong>Prefix expression notation requires that all operators precede the two operands that they work on. Postfix, on the other hand, requires that its operators come after the corresponding operands.</strong></p>
  
  <p>Examples:</p>
  
  <p>A + B * C = Normal used(Infix)    </p>
  
  <p>A + B * C = Now if we want to convert this into prefix we have to move all operator just before the two operands they work on. i.e + will come before A and * will come before B. Ok so far so good.<br>
  + A * B C = Prefix  </p>
  
  <p>A + B * C = Now if we want to convert this into postfix we have to move operator just after the two operands they work on i.e + <strong>should</strong> come after B and * will come after C. According to the rule it should be like this: <strong>A B + C *</strong> but in the example it shows us this:<br>
  <strong>A B C * +</strong> = Postfix.</p>
  
  <p>Please explain me where I'm going wrong.</p>
  
  <p>Thanks in advance  </p>
  
  <p>--<br>
  Regards<br>
  Pradeep</p>