On Mon, Dec 17, 2012 at 1:55 PM, Jens Axel Søgaard <jensa...@soegaard.net> wrote:
>> ==== >> moebius-mu > Would it be enough to add "distinct" ? IMO, yes. >> ==== >> multinomial >> >> "(multinomial n ks) → Natural >> n : Integer >> ks : (Listof Integer) >> ... >>> (multinomial 5 3 2) >> 10" >> >> The example does not agree with the spec. > > A proper formula would be easier. > > 5! / ( 3! * 2! ) = 120 / ( 6*2 ) = 10 > > I read the spec to give this: > >> (apply / (factorial 5) (map factorial (list 2 3))) > 10 Here there is a misunderstanding. I was not complaining about the formulas. The spec says it is a 2-arg function, an integer and a list of integers. In the example it takes three integers. ==== > Thanks again for the careful proof reading. Thanks for the excellent work! P. ____________________ Racket Users list: http://lists.racket-lang.org/users
