An Introduction to FSharp

This is the companion slides of a talk I gave for the .NET Miami user group on April 19th, 2012.

1. An Introduction to F# Horacio Nunez {[email protected], 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 language oriented F#

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

12. F# can consume and create OOP designs seamlessly

13. also… F# becomes MSIL , hard to read, but MSIL

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

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

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

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

18. Functional Abstractions for Numerical Matrixes  

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

20. Out of Memory Exception!

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

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

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