Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?
 
PerlMonks  

(tye)Re: More Fun with Zero!

by tye (Cardinal)
on Jul 24, 2001 at 08:37 UTC ( #99233=note: print w/ replies, xml ) Need Help??


in reply to Re: Re (tilly) 1: More Fun with Zero!
in thread More Fun with Zero!

Given a set containing N elements, how many different subsets are there that contain P elements? For P==0, the answer is always 1, the empty set.

Does that make it easier for you to understand? Update: Um, that sounds harsher than I intended it. For what it's worth, I found tilly's explanation hard to understand. I knew what he was getting at but the way he described there being only one possible choice of actions (no action) wasn't convincing to me, even leading me to thinking "there is no way to pick 0 things from 0 things because there is nothing to pick from". But changing terminology makes it very easy to understand, I think. The only choice I can make is to give you the empty set, the set that contains no items. So I'm not giving you zero sets, I am giving you one set.

        - tye (but my friends call me "Tye")


Comment on (tye)Re: More Fun with Zero!

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://99233]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others browsing the Monastery: (13)
As of 2015-07-28 11:18 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (254 votes), past polls