title: Calculating the Present Value
body: <p><a href="http://en.wikipedia.org/wiki/Present_value" rel="nofollow noreferrer">Present Value</a>  is the value on a given date of a future payment or series of future payments, discounted to reflect the time value of money and other factors such as investment risk. And yes, I know it's formula so don't need that.</p>
  
  <p>But I am wondering if this method is already predefined within the .NET libraries. I can't find it. (And I guess .NET doesn't contain this function so I will just have to use my own function instead.)</p>
  
  <p>I have no use for any nice third-party components or samples written in C#. I have to use some third-party scripting solution which allows any standard .NET library. I can add custom references to third-party libraries and even write my own add-on modules, but am trying to avoid this.</p>