• #### memorable quote (or joke) related to math...

From henhanna@gmail.com@21:1/5 to All on Sat Jul 16 10:44:22 2022
pls share a memorable quote (or joke) related to math...

here's one from
[A Mathematician’s Apology] by G. H. Hardy

..................... I will state and prove two of the famous theorems of Greek mathematics.
They are ‘simple’ theorems, simple both in idea and in execution,
but there is no doubt at all about their being theorems of the
highest class.

Each is as fresh and significant as when it has discovered—two thousand years have not written a wrinkle on either of them.

Finally, both the statements and the proofs can be
mastered in an hour by any intelligent reader, however slender his
mathematical equipment.

1. The first is Euclid’s [3] proof of the existence of an infinity of
prime numbers.
. . . . . . . . .
. . . . . . . . .

2. My second example is Pythagoras’s [6] proof of the ‘irration-
ality’ of Sqrt(2) . A ‘rational number’ is fraction b / a , where a and b are integers: we may suppose that a and b have no common factor,
since if they had we could remove it. To say that
' Sqrt(2) is irrational’ is merely another way of saying that ............

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• From Eric Sosman@21:1/5 to henh...@gmail.com on Sat Jul 16 16:10:36 2022
On 7/16/2022 1:44 PM, henh...@gmail.com wrote:

pls share a memorable quote (or joke) related to math...

Yet what are all such gaieties to me,
whose thoughts are full of indices and surds?
x^2 + 7x + 53
= 11/3

-- Lewis Carroll

--
esosman@comcast-dot-net.invalid
Look on my code, ye Hackers, and guffaw!

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• From Richard Heathfield@21:1/5 to Eric Sosman on Sat Jul 16 21:48:45 2022
On 16/07/2022 9:10 pm, Eric Sosman wrote:
On 7/16/2022 1:44 PM, henh...@gmail.com wrote:

pls share a memorable quote (or joke) related to math...

Yet what are all such gaieties to me,
whose thoughts are full of indices and surds?
x^2 + 7x + 53
= 11/3

-- Lewis Carroll

Then take half, take half, take half,
Take half, take half, take half, take half;

Now three by twenty-nine
And then by a hundred and three
And by one over ten
And again and again
And again and again
All together multiply
And now at last
multiply by eye,

Whether you add or take is moot;
You will have a complex root.

--
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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• From Richard Heathfield@21:1/5 to Eric Sosman on Sun Jul 17 02:04:57 2022
On 17/07/2022 1:18 am, Eric Sosman wrote:
On 7/16/2022 1:44 PM, henh...@gmail.com wrote:

pls share a memorable quote (or joke) related to math...

"It's not obvious." -- John Horton Conway

(Or perhaps "It isn't obvious."  My memory is imperfect, and I've
been unable to locate the source -- it must have been among Martin
Gardner's writings; perhaps someone else will come up with the
accurate quote and the correct context.  Anyhow, the imperfectly-
recalled scenario went somewhat like this: Gardner was speaking to
Conway at a party or something, and told him of a construction or
puzzle someone else had come up with -- something to do with a
generalization of N-ominoes, possibly.  Gardner mentioned that the originator was still struggling with a question concerning the three-dimensional analogs of his construction -- maybe "Can they
tile three-space?" -- and Conway immediately said "Well, it's
obvious that..." and broke off.  He maintained silence for some
macroscopic time span during which Gardner wondered what magical
realms of higher thought Conway might be exploring, then finally
remarked "It's not obvious" and walked away.)

(If you're the first to run down the original story, I will donate
one thousand electrons to the charity of your choosing.)

Try Martin Gardner's Mathematical Games: The Entire Collection of
His "Scientific American" Columns. Just saying it's worth a look,
not that it's definitely in there.

It's a story I have always treasured, but evidently not enough.

--
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
Sig line 4 vacant - apply within

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• From Eric Sosman@21:1/5 to henh...@gmail.com on Sat Jul 16 20:18:10 2022
On 7/16/2022 1:44 PM, henh...@gmail.com wrote:

pls share a memorable quote (or joke) related to math...

"It's not obvious." -- John Horton Conway

(Or perhaps "It isn't obvious." My memory is imperfect, and I've
been unable to locate the source -- it must have been among Martin
Gardner's writings; perhaps someone else will come up with the
accurate quote and the correct context. Anyhow, the imperfectly-
recalled scenario went somewhat like this: Gardner was speaking to
Conway at a party or something, and told him of a construction or
puzzle someone else had come up with -- something to do with a
generalization of N-ominoes, possibly. Gardner mentioned that the
originator was still struggling with a question concerning the three-dimensional analogs of his construction -- maybe "Can they
tile three-space?" -- and Conway immediately said "Well, it's
obvious that..." and broke off. He maintained silence for some
macroscopic time span during which Gardner wondered what magical
realms of higher thought Conway might be exploring, then finally
remarked "It's not obvious" and walked away.)

(If you're the first to run down the original story, I will donate
one thousand electrons to the charity of your choosing.)

--
esosman@comcast-dot-net.invalid
Look on my code, ye Hackers, and guffaw!

--- SoupGate-Win32 v1.05
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• From G@21:1/5 to Eric Sosman on Sun Jul 17 12:39:03 2022
Eric Sosman <esosman@comcast-dot-net.invalid> wrote:
On 7/16/2022 1:44 PM, henh...@gmail.com wrote:

pls share a memorable quote (or joke) related to math...

Yet what are all such gaieties to me,
whose thoughts are full of indices and surds?
x^2 + 7x + 53
= 11/3

-- Lewis Carroll

(12+144+20+3sqrt(4))/7 +5(11)=9^2

A dozen, a gross, plus a score
Plus three times the square root of four
Divided by seven
Plus five times eleven
Is nine squared (and not a bit more).

G

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• From Eric Sosman@21:1/5 to All on Sun Jul 17 10:46:30 2022
On 7/17/2022 8:39 AM, G wrote:

(12+144+20+3sqrt(4))/7 +5(11)=9^2

Appending "+0" might make a small improvement ...

A dozen, a gross, plus a score
Plus three times the square root of four
Divided by seven
Plus five times eleven
Is nine squared (and not a bit more).

... by justifying the parenthesized phrase.

--
esosman@comcast-dot-net.invalid
Look on my code, ye Hackers, and guffaw!

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• From Richard Tobin@21:1/5 to g@nowhere.invalid on Sun Jul 17 14:47:06 2022
In article <jjie77Fk7n8U1@mid.individual.net>, G <g@nowhere.invalid> wrote:

(12+144+20+3sqrt(4))/7 +5(11)=9^2

A dozen, a gross, plus a score
Plus three times the square root of four
Divided by seven
Plus five times eleven
Is nine squared (and not a bit more).

For "not a bit more" you should add "+0" to the equation.

-- Richard

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• From Edward Murphy@21:1/5 to henh...@gmail.com on Sun Jul 17 13:16:59 2022
On 7/16/2022 10:44 AM, henh...@gmail.com wrote:

pls share a memorable quote (or joke) related to math...

"[xkcd] means calling the Ackermann function with Graham's number as the
arguments just to horrify mathematicians."

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• From Gareth Taylor@21:1/5 to emurphy42@zoho.com on Mon Jul 18 20:24:19 2022
In article <tb1qnt\$9sd\$1@gioia.aioe.org>,
Edward Murphy <emurphy42@zoho.com> wrote:

"[xkcd] means calling the Ackermann function with Graham's number as
the arguments just to horrify mathematicians."

Somewhere, far in the distance, Rayo's number can be heard giggling to itself.

Gareth

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• From henhanna@gmail.com@21:1/5 to Richard Heathfield on Wed Jul 20 07:55:14 2022
On Saturday, July 16, 2022 at 6:05:01 PM UTC-7, Richard Heathfield wrote:
On 17/07/2022 1:18 am, Eric Sosman wrote:
On 7/16/2022 1:44 PM, henh...@gmail.com wrote:

pls share a memorable quote (or joke) related to math...

"It's not obvious." -- John Horton Conway

(Or perhaps "It isn't obvious." My memory is imperfect, and I've
been unable to locate the source -- it must have been among Martin Gardner's writings; perhaps someone else will come up with the
accurate quote and the correct context. Anyhow, the imperfectly-
recalled scenario went somewhat like this: Gardner was speaking to
Conway at a party or something, and told him of a construction or
puzzle someone else had come up with -- something to do with a generalization of N-ominoes, possibly. Gardner mentioned that the originator was still struggling with a question concerning the three-dimensional analogs of his construction -- maybe "Can they
tile three-space?" -- and Conway immediately said "Well, it's
obvious that..." and broke off. He maintained silence for some
macroscopic time span during which Gardner wondered what magical
realms of higher thought Conway might be exploring, then finally
remarked "It's not obvious" and walked away.)

(If you're the first to run down the original story, I will donate
one thousand electrons to the charity of your choosing.)

Try Martin Gardner's Mathematical Games: The Entire Collection of
His "Scientific American" Columns. Just saying it's worth a look,
not that it's definitely in there.

It's a story I have always treasured, but evidently not enough.
--

thanks! for the great info !

https://www.alaricstephen.com/main-featured/2017/5/20/polycube-snakes

Martin Gardner's
[The Colossal Book of Mathematics: Classic Puzzles, Paradoxes, and Problems ]
Page 203 ---

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• From Eric Sosman@21:1/5 to henh...@gmail.com on Wed Jul 20 11:55:23 2022
On 7/20/2022 10:55 AM, henh...@gmail.com wrote:
On Saturday, July 16, 2022 at 6:05:01 PM UTC-7, Richard Heathfield wrote:
On 17/07/2022 1:18 am, Eric Sosman wrote:
On 7/16/2022 1:44 PM, henh...@gmail.com wrote:

pls share a memorable quote (or joke) related to math...

"It's not obvious." -- John Horton Conway

(Or perhaps "It isn't obvious." My memory is imperfect, and I've
been unable to locate the source -- it must have been among Martin
Gardner's writings; perhaps someone else will come up with the
accurate quote and the correct context. Anyhow, the imperfectly-
recalled scenario went somewhat like this: Gardner was speaking to
Conway at a party or something, and told him of a construction or
puzzle someone else had come up with -- something to do with a
generalization of N-ominoes, possibly. Gardner mentioned that the
originator was still struggling with a question concerning the
three-dimensional analogs of his construction -- maybe "Can they
tile three-space?" -- and Conway immediately said "Well, it's
obvious that..." and broke off. He maintained silence for some
macroscopic time span during which Gardner wondered what magical
realms of higher thought Conway might be exploring, then finally
remarked "It's not obvious" and walked away.)

(If you're the first to run down the original story, I will donate
one thousand electrons to the charity of your choosing.)

Try Martin Gardner's Mathematical Games: The Entire Collection of
His "Scientific American" Columns. Just saying it's worth a look,
not that it's definitely in there.

It's a story I have always treasured, but evidently not enough.
--

thanks! for the great info !

https://www.alaricstephen.com/main-featured/2017/5/20/polycube-snakes

Martin Gardner's
[The Colossal Book of Mathematics: Classic Puzzles, Paradoxes, and Problems ]
Page 203 ---

Splendid! I've shipped your thousand-electron reward via DHL;

https://d.newsweek.com/en/full/2016931/costa-rica.jpg

--
esosman@comcast-dot-net.invalid
Look on my code, ye Hackers, and guffaw!

--- SoupGate-Win32 v1.05
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