Nyi Nyi Thann

Thanks much.

The explanation is clear, effective and very helpful.

Thanks  Charles and Dom.

It's really useful for someone like me who is learning F#.

I do hope that more and more F# shows are coming in future.

And i really would like to watch the discussion about FP between Erik and Dom. 

Charles... Can u arrange?

I bought Chris Smith's Programming F#. It's excellent book.  Concise explanation.

Dear ,

 

The following is my ugly and stupid attempt to the homework. 

 

class Program
    {
        delegate IEnumerable<T> QSortFunc<T> (IEnumerable<T> source) where T: IComparable<T>;

        static void Main(string[] args)
        {
            QSortFunc<int> qsort = null;

            qsort = nums => nums.Count() < 1
                            ? Enumerable.Empty<int>()
                            : qsort(nums.Where(num => num.CompareTo(nums.FirstOrDefault()) <= 0).Skip(1))
                                .Concat(nums.Take(1))
                                .Concat(qsort(nums.Where(num => num.CompareTo(nums.FirstOrDefault()) > 0)));

            var seq = new[] { 1, 1, 2, 9, 7, 8, 3, 9, 7, 8, 3, 0, -1 };            
            var result = qsort(seq);
            result.ToList().ForEach(Console.WriteLine);            
        }        
    }    

Thanks so much Dr. Erik and Charles. 

It's a great chance to become a student of Professor Erik.

I always wanna learn a pure functional programming language. 

What a great chance fore me!

 

Thanks much.

Apple[] as
Fruit[] fs = as
Fruit f = fs[0]
fs[1] = new Banana

 

In C#, the last line will throw ArrayTypeMismatchException. :

Could you please tell me where i can get the transcript?
Thanks.