An Introduction to FSharp

1. An Introduction to F# Horacio Nunez {hnh12358@gmail.com, horatio.info}

2. What is F#? F# Interactive F# 101 (less than 10 minutes!) Walkthrough: Functional Numerical Matrixes Online Resources

3. F# is multi-paradigm programming language targeting the .NET framework

4. functional object oriented imperative F# language oriented

5. Immutable values and data types (No State => No Shared Memory) let x = 10 x = 10 //<!-- boolean

6. High Order Functions (functions can be parameters and results of other functions)

7. Type Inference Think in C#’s var… everywhere

8. Declarative Express the desired result, not the step-by-step recipe

9. Lazy Evaluation Use values only when you really need it

10. Pattern Matching The compiler “understands” types

11. Imperative

12. Mutable values and data types (State => Probable Shared Memory) let mutable x = 10 x <- 10

13. Object Oriented

14. F# can consume and create OOP designs seamlessly

15. Keep in mind that… F# becomes MSIL, hard to read, but MSIL

16. F# is fully supported in Visual Studio except for GUI Designers

20. Functional Abstractions for Numerical Matrixes

21. Have you ever tried to create a Matrix of order Int32.MaxValue?

22. Out of Memory Exception!

23. Lets use a functional approach!

25. ONLINE RESOURCES Don Syme’ Blog (F# Designer) http://blogs.msdn.com/b/dsyme/ Tomas Petricek's’ Blog http://tomasp.net/

26. ONLINE RESOURCES F# Snippets http://fssnip.net/ Channel 9 http://channel9.msdn.com/ StackOverflow http://stackoverflow.com/

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