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toughy math with averages

4: Adsense

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#21 Timkin   Members   

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Posted 04 July 2001 - 07:56 PM

Mmm...

Beer Hunter, your logic doesn''t quite make sense to me. Of course, that could be just a fault in my brain, not yours!

For bit strings of length n...

a) there are 2n possible strings;

b) there are sumi=0n-1{2i} strings that are shorter in length than n;

c) there are twice as many strings of length n as there are of length (n-1).

Which of these facts were you using in your proof and how (exactly)?

Thanks,

Tim

#22 mossmoss   Members   

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Posted 06 July 2001 - 02:54 AM

Yeah, it''s basically the Pigeonhole Principle.

You can''t stuff N pigeons into N-1 holes without at least one hole containing more than one pigeon. Likewise, there can be NO compression algorithm that will compress every file.

#23 grhodes_at_work   Members   

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Posted 06 July 2001 - 09:31 AM

Heh heh. I hadn''t heard of the pigeonhole principle, but I did hear how to put 6 elephants into a volkswagon.

3 in the front and 3 in the back, get it?

(Sorry, that''s my Dad''s very old joke. Don''t ask for Tarzan elephant jokes.)


Graham Rhodes
Senior Scientist
Applied Research Associates, Inc.

#24 mossmoss   Members   

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Posted 06 July 2001 - 05:04 PM

quote:
Original post by grhodes_at_work
Heh heh. I hadn''t heard of the pigeonhole principle, but I did hear how to put 6 elephants into a volkswagon.



Very carefully???

---- --- -- -
Blue programmer needs food badly. Blue programmer is about to die!


#25 Beer Hunter   Members   

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Posted 08 July 2001 - 04:28 PM

How do you fit an elephant in the fridge?

You open the door and put it in.

(Very poor, I know.)

#26 Anonymous Poster_Anonymous Poster_*   Guests   

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Posted 08 July 2001 - 08:20 PM

how do you put a cow in the fridge?
open the door.
remove the elephant that was in the fridge
put the cow in place
close the door
(even lower )




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