Nothing
nchoosek = function(cs , k) { #i can also pass the compFun arg for selecting
if (length(cs) == 1) { #if not vector
res = choose(cs, k); #or nchoosek
} else res = combn(cs, k)
res;
}
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.