There are three way to have this done:

• Text output into file and writing application on other language to show the results. This is a fast and simple solution. But my F# program returns list of weights, widths and centers. So I need to write the neural network modeler again! Oh, no… I don’t like this way.
• Use the ability of Microsoft Visual Studio to call procedures, written on other languages inside one project. At first I wanted to use this ability, but yesterday I find the best way to do the modeler.
• Windows Presentation Foundation (WPF). It’s a part of .NET framework 3 and gives us an opportunity to have separate code and markup written.

I need to have my visualizer finished in 3 days, so results are coming soon!

There are a lot of materials about F# and WPF, but I liked this one.

I don’t know all of advantages of F#, but during this month I found what F# is

• Easy to learn and understand. You may not have a wide knowledge to start.
• Usually it’s much more expressive.
• It’s really difficult to make a bug!
• You can use .NET libraries and classes.
• You can combine Functional abilities with object oriented and imperative idioms.

Don’t be afraid of using it! It takes about two weeks to get accustomed to F#. You just need to have F# compiler to start. If you want to have IDE, my advise is downloading Microsoft Visual Studio 2008 Shell.

I use following books as a source of information about F# and functional programming:

• Foundations of F#
• Expert F#
• A. Field, P. Harrison: Functional Programming, Addison-Wesley, 1988