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.

The F# Language Specification
Get all the nitty-gritty details of the F# language from the draft F# language specification. Provides a in-depth description of the F# language's syntax and semantics. Also available in PDF.

F# Microsoft Research Site
Additional F#-related content can be found at the Microsoft Research F# site, as well as links to previous releases of F#.

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

“Hello GTK#” from the latest IronPython and F#
A little post to record a short bit of spiking with GTK# as UI toolkit, porting the simple C# examples from here to my preferred .net languages. Neither of these explorations are totally novel -- ther... 更多
Wednesday, Nov 11 - Steve
Lists in F#
In this video, programming writer, Gordon Hogenson explains and gives examples of lists in F#. You can also learn more in the topic Lists (F#) Kathleen McGrath Visual Studio User Education http://b... 更多
Wednesday, Nov 11
Silverlight Cream for November 10, 2009 -- #728
Bart Czernicki approaches that and other good topics in this post about Silverlight, F#, and VS2010... and finishes up with a bunch of "Getting started" links ... so jump in there and find out why! Mu... 更多
Monday, Nov 9
F# Rational64 implementation
The F# Power Pack includes an arbitrarily large Rational type called BigNum, which in turn uses the arbitrarily large BigInt type for the numerator and denominator. The BigInteger type has recently mo... 更多
Monday, Nov 9 - Phil
Another quick aside…
If you haven’t seen the new Visual Studio branding, you should check it out! I really like the new look. Here’s F#: Of course, for a slightly different take on the logo, see Chris’ recent blog post.... 更多
Monday, Nov 9
Connecting to SQL Azure Using ADO.NET in F#
This is a very straightforward port of SQL Azure code from msdn: #r "System.Core" open System open System.Collections.Generic open System.Linq open System.Text open System.Data.SqlClient open System... 更多
Monday, Nov 9

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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

Array of strings problem
Hello all,I've been trying to convert array of strings to a single one and found that resulting string lacks some of information contained in that arr... 更多
Tuesday, Nov 10 - M_Petrov
--mlcompatibility tag
Is there a way to control which segments of code (functions) get compiled using the compatibility tag? Basically I still use Arg to parse command lin... 更多
Thursday, Nov 12 - leonidr

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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... 更多
Monday, Oct 19
F# Language Keywords (Visual Studio 2010)
Explore the F# language keywords.
Friday, Jun 12

More F# Library Content >

F# Projects from 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... 更多
Sunday, Nov 8 - 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 - CodePlex
M<'a> Lib (F#/C# Monads Library)
Unified collection of Monads (M, unit, *) implemented in the Microsoft F# Language.
Thursday, Sep 17 - CodePlex

More F# Projects >

F# Samples from 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... 更多
Thursday, Jul 16 - 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... 更多
Thursday, Jun 25 - MSDN Code Gallery
A lightweight actor model implementation
A lightweight actor model implementation with demo in both C# and F#.
Saturday, May 16 - MSDN Code Gallery

More F# Samples >
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