title: How to use Financial Function in c#, like EXCEL
body: <p>How to use Financial Function in c#,  like EXCEL</p>
  
  <p>For example,   IRR,
  Present Value,
  Future Value,
  NPV,
  etc.</p>
  
  <p>I have found this link, but i doesn't work for me. I added Finance.dll,  but I dont know how to do next.</p>
  
  <p><a href="http://archive.msdn.microsoft.com/FinancialFunctions" rel="nofollow">http://archive.msdn.microsoft.com/FinancialFunctions</a></p>
  
  <p>if you have better solution help please tell me or  give sample one example from the link above.</p>
  
  <p>Thank you</p>