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Introduction to F# for Devs

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Robert Rohr
Robert Rohr

This document summarizes a presentation about the functional programming language F#. It discusses key differences between functional and imperative programming, popular functional languages, why F# was developed, how to work with F# in Visual Studio, important concepts like immutability and pipeline operators, libraries like the F# Powerpack, parallel programming capabilities, and resources for learning more. The presentation was given by Rob Rohr on September 11, 2010 in Kalkin Hall at the University of Vermont.

Tecnología
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Tech for Devs:Introduction to F# Rob Rohr 12:30 - 1:30 Sep 11, 2010 Kalkin Hall University of Vermont
Functional Programming Emphasize application of functions over mutation of state (imperative programming style)
Um. Yeah. What? Functional fun inc x => x + 1 Imperative x = x + 1
Important differences Academics – especially mathematicians - love functional programming! Type safety through inference Lack of side effects
Heh! What is it good for? Mathematical modeling Programming languages ,[object Object],List processing Parallel programming Concise code, fewer bugs !(“Absolutely nothing?”)
Popular functional programming languages Erlang Lisp Scheme Haskell OCaml/ML F#
Why F#, then? Superset of OCaml Full access to .NET Object Oriented First class tools Units! Y!
DEMO Working with F# in Visual Studio
Important: Let Let keyword ,[object Object]
Binds value to symbol
Immutable,[object Object]
Important: fun Define a function in line Anonymous function Lambda expression!
F# Powerpack http://fsharppowerpack.codeplex.com/ Matrix library FsLexx & FsYacc LINQ in F# HTML Docs from F# code HashMultiMap SI Units of Measure
Parallelizable! How do I parallelize my map/reduce/fold code? Seq.map -> Seq.pmap etc.
Availability YOU MAY ALREADY HAVE IT Included in Visual Studio 2010 OR, FOR FREE, Can install VS2010 Shell with August release of F# 2.0 Can install VS2008 Shell with August release of F# 2.0 Can install F# 2.0 for Mono/Mac/Linux/Windows http://research.microsoft.com/en-us/um/cambridge/projects/fsharp/release.aspx
Resources F# Developer Centerhttp://fsharp.net Parallel Sampleshttp://tomasp.net/blog/fsharp-parallel-samples.aspx Chris Smith bloghttp://blogs.msdn.com/b/chrsmith/ Luca Bolognese bloghttp://lucabolognese.wordpress.com/
More Resources F# at Microsoft Researchhttp://research.microsoft.com/en-us/um/cambridge/projects/fsharp/ Don Syme’s bloghttp://blogs.msdn.com/b/dsyme/ Luke Hoban’s bloghttp://blogs.msdn.com/b/lukeh/

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SIP trunking in Janus @ Kamailio World 2024
 

Introduction to F# for Devs

  • 1. Tech for Devs:Introduction to F# Rob Rohr 12:30 - 1:30 Sep 11, 2010 Kalkin Hall University of Vermont
  • 2. Functional Programming Emphasize application of functions over mutation of state (imperative programming style)
  • 3. Um. Yeah. What? Functional fun inc x => x + 1 Imperative x = x + 1
  • 4. Important differences Academics – especially mathematicians - love functional programming! Type safety through inference Lack of side effects
  • 5.
  • 6. Popular functional programming languages Erlang Lisp Scheme Haskell OCaml/ML F#
  • 7. Why F#, then? Superset of OCaml Full access to .NET Object Oriented First class tools Units! Y!
  • 8. DEMO Working with F# in Visual Studio
  • 9.
  • 10. Binds value to symbol
  • 11.
  • 12. Important: fun Define a function in line Anonymous function Lambda expression!
  • 13. F# Powerpack http://fsharppowerpack.codeplex.com/ Matrix library FsLexx & FsYacc LINQ in F# HTML Docs from F# code HashMultiMap SI Units of Measure
  • 14. Parallelizable! How do I parallelize my map/reduce/fold code? Seq.map -> Seq.pmap etc.
  • 15. Availability YOU MAY ALREADY HAVE IT Included in Visual Studio 2010 OR, FOR FREE, Can install VS2010 Shell with August release of F# 2.0 Can install VS2008 Shell with August release of F# 2.0 Can install F# 2.0 for Mono/Mac/Linux/Windows http://research.microsoft.com/en-us/um/cambridge/projects/fsharp/release.aspx
  • 16. Resources F# Developer Centerhttp://fsharp.net Parallel Sampleshttp://tomasp.net/blog/fsharp-parallel-samples.aspx Chris Smith bloghttp://blogs.msdn.com/b/chrsmith/ Luca Bolognese bloghttp://lucabolognese.wordpress.com/
  • 17. More Resources F# at Microsoft Researchhttp://research.microsoft.com/en-us/um/cambridge/projects/fsharp/ Don Syme’s bloghttp://blogs.msdn.com/b/dsyme/ Luke Hoban’s bloghttp://blogs.msdn.com/b/lukeh/
  • 18. Contact me: Rob RohrSchool of Business AdminUniversity of Vermont230 Kalkin HallBurlington, VT 05405-0157robert.rohr@uvm.edu@rob_rohr