F# Language, Functional Programming, etc.

This article describes an interesting example of mathematical duality in programming languages - the duality between references between objects and references between events. The idea is useful for understading what events are garbage and can be garbage collected.

In this article we look at working with SQL databases in F# using ADO.NET. We'll see how to use dynamic invoke operator to make the usual ADO.NET code remarkably elegant and simple...

In June, I attended PLDI 2010, which is one of the big "programming language" conferences. I presented a paper based on some work that I did during my internship at MSR at one of the workshops and I also attended many interesting talks...

Almost a week ago, I posted an invitation to my F# talk at the F#unctional Londoners user group. The talk has been recorded, so you can view it online now and you can also get all the Silverlight demos...

This article shows how to use F# for developing ASP.NET web applications using the MVC framework. It also shows how to access data using LINQ in F# and how to simplify web programming using F# meta-programming, modules and records.

In this article series we're talking about the Accelerator project, which can be used from F# to write code that runs in parallel on GPU or multi-core CPU. In this article, we'll look at building complex data-parallel programs with F# quotations, we'll implement blur filter and we'll also discuss architecture and performance.

We already discussed how to write programs that run on GPU using MSR Accelerator. In this article, we'll write an image rotation using data-parallel F# functions and then use a library that translates it to Accelerator automatically.

This article shows how to use Accelerator from F#, which I already discussed, to implement a massively parallel version of the famous Conway's Game of Life.

This article shows how to write F# programs that run in parallel as shader programs on GPU or on multi-core CPU using Microsoft Research Accelerator project.

This webcast demonstrates how to wrap an existing F# code into an object oriented library that can be nicely used from C# and how to use it when developing ASP.NET web application. The demo uses script for processing RSS feeds from the previous webcast.

In the previous part you've seen how to write a simple function for downloading RSS feeds and processing them. In this part, we look how to improve the function to download data asynchronously and process them potentially in parallel.

This is the second part of the webcast series that introduces the F# language. It shows how to use .NET libraries from F# to download RSS feed and how to work with the obtained data using tuples, sequence expressions and other F# features.

Now that Visual Studio 2010 beta 1 is out, it may be a good time finally try the new F# language. To make the exploration easier, I created a web cast series that demonstrates interesting aspects of F#. In this part, we'll look at basic functional concepts and working with data.

I already mentioned that I was doing my second internship with Don Syme at MSR Cambridge. This time, I was in Cambridge for 6 months from October until April, so it has been more than a month since I left, but as you can guess I didn't have time to write anything about the internship until now...

In the previous article of this series, we've implemented a computation expression that allows us to write imperative 'return' in F#. In this article, we'll add support for 'break' and 'continue'.

Even though F# supports some imperative constructs such as for and while loops, it doesn't support some of the advanced constructs like imperative return and break. In this series, we'll look how we can implement these constructs ourselves using F# computation expressions.

Just a short update regarding the book I'm working on. First of all, the source code for the first 11 chapters is now available! Secondly, I did some changes to the TOC and you can now find the commented TOC on the book web site.

This article is partially an excerpt from my book. It introduces the benefits of functional pogramming, and explains the essential aspects of the functional style using F# and C# 3.0. Finally, it also shows how functional style influences the application architecture.

In this article, we'll implement a simple iteractve game using the Reactive LINQ project. The article shows that this way of handling events gives us amog other things a great degree of composability.