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A Prayer for Archimedes: ... he had begun to discover the principles of calculus.
ScienceNews ^ | january 24 2009 | Julie Rehmeyer

Posted on 01/24/2009 6:43:23 PM PST by Daffynition

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To: Ernest_at_the_Beach
Contably compact Space
41 posted on 01/24/2009 8:51:26 PM PST by patton (SPQA)
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To: Ernest_at_the_Beach
Countable Chain Condition
42 posted on 01/24/2009 8:56:15 PM PST by patton (SPQA)
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To: patton

I used that trick in a math exam, sophomore year. I could not get the proof, so I multiplied both side by zero and added the right answer. Got me an “A”. Was it cheating? Damned right it was!


43 posted on 01/24/2009 8:57:48 PM PST by troglodyte (troglodyte)
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To: patton

$ cat birth.c
int bdays[12];

main(argc,argv)
int argc;
char **argv;
{
int i,j,N;
double drand48();

N = atoi(argv[1]);
srand48( getpid() );

for( i=0 ; i<N ; i++ ){
j = 12 * drand48();
++bdays[ j ];
}
for( i=0 ; i<12 ; i++ ) printf(”%3d “, bdays[i]);
printf(”\n”);

}
$ for i in 1 2 3 4 5 6 7 8 9 0
do
birth 20
done
0 2 0 3 1 1 4 3 4 1 1 0
1 1 1 3 2 1 0 3 3 2 2 1
0 4 2 2 1 3 3 1 2 0 2 0
1 3 3 1 5 2 1 1 0 1 1 1
0 3 3 4 1 3 1 2 0 1 0 2
3 3 0 4 0 0 2 0 4 1 1 2
1 1 2 2 0 1 2 2 2 0 2 5
0 4 3 2 1 0 1 3 2 4 0 0
1 3 1 1 0 2 3 1 3 0 3 2
1 1 3 3 1 1 0 1 2 3 1 3


44 posted on 01/24/2009 9:00:40 PM PST by dr_lew
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To: troglodyte

I use that trick to disqualify job candidates. If they don’t go “Hey, idiot, you can’t divide by zero!”, I have security put them off the property.


45 posted on 01/24/2009 9:04:18 PM PST by patton (SPQA)
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To: dr_lew

Too stochastic, average them and give me the deterministic answer.


46 posted on 01/24/2009 9:08:15 PM PST by patton (SPQA)
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To: patton
can you tell me wether the countable chain condition implies that a space is compact?

If you wish, I can send you some links about chain conditions.

Saturday night at the math follies...

47 posted on 01/24/2009 9:10:00 PM PST by 17th Miss Regt
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To: 17th Miss Regt

Don’t drink and derive....


48 posted on 01/24/2009 9:11:38 PM PST by patton (SPQA)
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To: 17th Miss Regt

But, MAN, I really would like an hour alone with that book.

Er....,that book and a really good scanner.


49 posted on 01/24/2009 9:13:33 PM PST by patton (SPQA)
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To: patton

I agree. This may be a very significant find for the history of mathematics. Maybe Archimedes would have chosen to use English letters instead of Greek letters in math proofs. Can you imagine if instead of epsilons and deltas, we had e’s and d’s arguments? Give me an e and I will find a d... Seems awful bland.


50 posted on 01/24/2009 9:21:27 PM PST by 17th Miss Regt
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To: patton

The Alexander Horned Sphere did me in!


51 posted on 01/24/2009 9:21:43 PM PST by Ernest_at_the_Beach (No Burkas for my Grandaughters!)
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To: patton
Q: How do you know that the Mayflower was not closed and bounded without the passengers?

A: Because the passengers made the Mayflower Compact!

Limp, limp, limp,.....

52 posted on 01/24/2009 9:25:52 PM PST by 17th Miss Regt
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To: 17th Miss Regt

Maybe he used aremaic symbols. LOL.


53 posted on 01/24/2009 9:31:49 PM PST by patton (SPQA)
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To: 17th Miss Regt

Awwww, that hurt.


54 posted on 01/24/2009 9:33:39 PM PST by patton (SPQA)
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To: Ernest_at_the_Beach

Horned sphere?


55 posted on 01/24/2009 9:34:55 PM PST by patton (SPQA)
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To: patton

The deterministic answer to what ?


56 posted on 01/24/2009 9:52:36 PM PST by dr_lew
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To: patton
See this:

Alexander’s Horned Sphere


57 posted on 01/24/2009 9:58:05 PM PST by Ernest_at_the_Beach (No Burkas for my Grandaughters!)
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To: Red Badger

Archimedes computed the area of the curved figure (left) by enclosing it in a bigger one with straight edges (right). He then examined random slices to compute the volume—using the concept of actual infinity.
Credit: The owner of the Archimedes Palimpsest.


58 posted on 01/25/2009 5:15:24 AM PST by Daffynition ("Beauty is in the sty of the beholder." ~ Joe 6-pack)
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To: Daffynition

bookmark


59 posted on 01/25/2009 6:14:33 AM PST by TexasTransplant (NEMO ME IMPUNE LACESSET)
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To: Red Badger

Not to be picky, but the Arabs neither invented nor discovered the ‘zero’. They borrowed it from India, as with most of the great Muslim acccomplishments.


60 posted on 01/25/2009 8:00:12 AM PST by chesley (A pox on both their houses. I've voted for my last RINO.)
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