F#_Fsharp_logoF#  (pronounced F Sharp) is an open source, functional-first programming language which empowers users and organisations to tackle complex computing problems with simple, maintainable and robust code. It was released by Microsoft and is used in a wide range of application areas and is available across multiple platforms.

F# has recently been made F# more readily available on FreeBSD:

Since my original post, I’ve been contacted by a few people who wanted to try F# on FreeBSD but didn’t know how to set it up (or who ran into trouble when they tried). So, I spent a couple of hours last weekend writing up detailed instructions for installing Mono 3.0, F# 3.0, and emacs on FreeBSD, and they’re now available on fsharp.org.

I tested the instructions on a fresh installation of FreeBSD 9.1-RELEASE (32-bit) in VirtualBox on 64-bit Windows 7, and everything worked as it should. If you try the instructions — and you should :) — and run into problems, please start a new thread here on the mailing list and I’ll help you get it fixed. (In this case, conversing on the mailing list is preferable so the solution is available to everyone.) (src)

If you’re interested in installing and using F# on FreeBSD, have a look at the F# FreeBSD page with all the steps you need to take.

I had never heard of it till today. But I’m not a programmer ;-)  More information on F# can be found here :