F# is a strongly-typed language like C#.It is light weight syntax just like Python.It give you math-like feel.

let data = (1,2,3)

let rotations (x, y, z) =

    [ (x, y, z);

      (z, x, y);

      (y, z, x) ]

let derivative f x =

    let p1 = f (x - 0.05)

    let p2 = f (x + 0.05)

    (p2 - p1) / 0.1

let f x = 2.0*x*x - 6.0*x + 3.0

let df = derivative f

System.Console.WriteLine("The derivative of f at x=4 is {0}", df 4.0)

This program will print: “The derivative of f at x=4 is 10”

That’s a quick look at just a few of the exciting features of F#.  For more on F#, visit the F# Development Center on MSDN.