Re: What is Data Model FOR?

From: Daniel Lifschitz <danlif_at_ucsc_dot_edu>
Date: Thu Apr 29 2004 - 16:12:45 CDT

Darn, I got beat to it.

I also wanted to mention I'll have some time this summer
from June 10th to July 13th before I go abroad to help
out. Since I know a lot of this goes on in my area feel
free to give me a call if you guys need a lacky to get
your coffee =).

-Daniel Lifschitz

(Hopefully it won't be to get coffee though)

On Thu, 29 Apr 2004 11:20:05 -0700
  Arthur Keller <> wrote:
>At 11:10 AM -0700 4/29/04, Alan Dechert wrote:
>> > Dear Daniel, thanks for your message. n! is good
>>enough closed form
>>> for me. But n! only gives you the full permutations of
>>> candidates, not the partial permutations of up to n
>>>candidates. Do
>>> you have a formula for that? Do you want to derive it?
>>We went over this some time ago:
>>The unordered combinations of n things taken k at a time
>>is given by
>>n!/(k! * (n-k)!)
>David gave the answer anyway I wanted for ordered partial
>combinations. It'd be interesting to see what the actual
>numbers turn out to be.
>Best regards,
>Arthur M. Keller, Ph.D., 3881 Corina Way, Palo Alto, CA
> 94303-4507
>tel +1(650)424-0202, fax +1(650)424-0424
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Received on Fri Apr 30 23:17:25 2004

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