> 
> **Possible Duplicate:**  
> 
> [Functional programming and non-functional programming](https://stackoverflow.com/questions/24279/functional-programming-and-non-functional-programming) 
> 
> 
> 

I'm afraid Wikipedia did not bring me any further.
Many thanks

PS: This past thread is also very good, however I am happy I asked this question again as the new answers were great - thanks

[Functional programming and non-functional programming](https://stackoverflow.com/questions/24279/functional-programming-and-non-functional-programming)