Hi all, where can i find a flexible Free Online Scientific Calculator? thank you.
Same answer as with your other post.
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
try the same link: http://online-calc.com/
Welcome to the forum.
In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.