F# is a functional programming language for the .NET Framework. It combines the succinct, expressive, and compositional style of functional programming with the runtime, libraries, interoperability, and object model of .NET.

Getting Started with F#

Download F#
Get the newest release of F#, either with the Visual Studio 2010 Beta2 or as a CTP add-on for Visual Studio 2008. The F# releases include the compiler, libraries, and Visual Studio integration needed to get started developing with F#.

Learn F#
Get resources for learning F#, including articles, videos, and books. Three sample chapters of the Expert F# book are also available for preview.

F# Documentation
Browse the in-depth documentation of the F# language and library on MSDN. Or for even more details, see the draft F# language specification, also in PDF.

F# Microsoft Research Site
Find out about the history of F# as a research language at Microsoft Research.

Featured Content

October 2009 F# Release
Announcing the latest release of the F# compiler, library and Visual Studio tools. Don details the new features of this release.
F# in VS2010
S. Somasegar highlights a few of the exciting features that F# brings to VS2010, including a Simple and Succint Syntax, simplified Parallel and Asynchronous Programming and Units of Measure.
Online Content for Learning F#
A catalogue of great F# resources from around the web. Brian includes videos, forums and many useful blog posts in his list.

Featured "How do I?" Videos

F# Community Blogs

Exploring MongoDB with F#
If you’ve been following me on Twitter, I’ve been digging a bit into MongoDB.  When I was involved with the planning of NoSQLEast this past year, I sat down and used it in anger and was quite ple... more
Monday, Feb 8 by podwysocki
F# Tutorial and Talk Today at TechDays, Paris (Late Announcement!)
There is an F# tutorial and an F# talk today at TechDays, Paris, presented jointly with Adam Granicz and Robert Pickering. The tutorial is at 13:30-14:30, Feb 9 and will be a light introduction t... more
Monday, Feb 8 by dsyme
Upcoming release and the “F# 2.0” language
If you’re very tuned in to the interwebs, you may be aware of hints that the public VS2010 release candidate (RC) will arrive soon. As usual, the F# team plans to publish a new MSI/ZIP for VS2008 and... more
Monday, Feb 8
F# Discoveries This Week 02/08/2010
Back again with another F# community roundup.   There’s been a ton of great content this week, almost too much.  To try to combat this I’ve attempted to sort posts roughly in terms of h... more
Monday, Feb 8
New syntactic sugar for “FAKE – F# Make” – Getting rid of magic strings
The new version 0.27 of “FAKE – F# Make” comes with new syntactic sugar for build targets and build dependencies. Don’t be afraid the old version is still supported – all scripts should still wo... more
Monday, Feb 8
An RSS Dashboard in F#, part three (RSS feeds)
Previous posts in this series: An RSS Dashboard in F#, part two (IObservables) An RSS Dashboard in F#, part one (intro) Last time I covered IObservables and we created a useful ObservableSource cla... more
Saturday, Feb 6

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F# Community

hubFS: THE place for F#
Ask questions, post answers, and participate in the F# community at the F# forums on hubFS.net.

What's New in the F# Community
See what's going on in the F# community blogs and forums.

Send Feedback to the F# Team
Send mail to fsbugs@microsoft.com with your feedback.

F# Team Blogs

F# Forum

Free F# Book
In case anyone didn't know about this:

http://www.ctocorner.com/fsharp/book/default.aspx

"The F# Survival Guide"
Monday, Feb 8 by OnorioCatenacci
Interview With Don Syme
In case anyone didn't see this:Don Syme: Geek of the WeekAn in depth interview with Don Syme about the roots of F# and his thoughts on where the langu... more
Saturday, Feb 6 by OnorioCatenacci

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Featured F# Library Content

Important updates and highlights of F# content in the MSDN Library.

Interpreter Options in F# (Visual Studio 2010 Beta)
Learn about the command-line options supporte... more
Monday, Oct 19

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F# Projects from CodePlex

FScheme
Scheme-like interpreter implemented in F#.
Wednesday, Jan 20 by CodePlex
Custom WPF Controls in F#
This project is to give users non trivial examples of custom WPF controls in F#.The code is a translation of the excellent book “WPF Control Development Unleashed: Building Advanced User... more
Monday, Nov 9 by CodePlex
Aqueduct
Aqueduct is a framework for analyzing large data sets by composing small functional building blocks into complex pipeline graphs that are processed as streams.
Saturday, Sep 26 by CodePlex

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F# Samples from Code Gallery

Real-World Functional Programming Samples
This project contains source for the book Real-World Functional Programming by Tomas Petricek with Jon Skeet. For more information about the book see http://functional-programming.net.
Thursday, Dec 10 by MSDN Code Gallery
LAgent: an agent framework in F#
This is an agent framework based on on F# MailboxProcessors. It supports agents, workers, error management, timeout management and hot swapping of code. The framework is described here: http://blogs.msdn.com/lucabol/archiv... more
Thursday, Jul 16 by MSDN Code Gallery
Request-Response Testing with F#
F# is Microsoft's new programming language. F# is a hybrid language -- based on functional language principles but allowing traditional imperative/procedural coding too. The F# test harness (file Project.fs) sends an HTTP... more
Thursday, Jun 25 by MSDN Code Gallery

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