Elegant Equations

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Message 39637 - Posted: 24 Oct 2004, 10:03:05 UTC
Last modified: 24 Oct 2004, 12:14:07 UTC

Just got my copy of today's Times. On the back page of the Week in Review they have an article called "What Makes an Equation Beautiful".

"Physics World magazine recently asked readers to send in nominations for the best equations of all time. Euler's equation was one of the most popular. It has wide application in understanding the motion of any type of wave, including light"

For those not familiar with the equation (or the delivery boy didn't stop by) it's e^(Ï€i) + 1 = 0. The caption continues...

"One respondent said of this equation: 'What could be more mystical than an imaginary number interacting with real numbers to produce nothing?'"

Since I didn't see a:b::a+b:a or x=x+1, I wonder what other equations should have been listed.
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Message 39688 - Posted: 24 Oct 2004, 13:40:46 UTC

2 + 2=4
Account frozen...
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Message 39693 - Posted: 24 Oct 2004, 13:53:22 UTC

On your touchtone phone, if you had the numbers
diagonaly, the sums are the same.

159 + 951 = 1110
753 + 357 = 1110
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Message 39694 - Posted: 24 Oct 2004, 13:54:37 UTC - in response to Message 39688.  

1+1=2 came in third alongside E=mc^2 (Einstein) and S=k*ln(W) (Boltzmann)
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Message 39696 - Posted: 24 Oct 2004, 13:56:25 UTC - in response to Message 39693.  

On your touchtone phone, if you had the numbers
diagonaly, the sums are the same.

159 + 951 = 1110
753 + 357 = 1110


You mean the sequence of digits, not the DTMF Hz, right?
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Message 39699 - Posted: 24 Oct 2004, 14:00:59 UTC - in response to Message 39696.  

> You mean the sequence of digits, not the DTMF Hz, right?

Absolutaly, I haven't checked for the Dual Tonne Multi Frequency.
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Message 39700 - Posted: 24 Oct 2004, 14:04:39 UTC

Type 713705 on your calculator and turn it, what do you see ?
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Message 39701 - Posted: 24 Oct 2004, 14:05:26 UTC - in response to Message 39699.  
Last modified: 24 Oct 2004, 14:07:26 UTC

>> You mean the sequence of digits, not the DTMF Hz, right?

> Absolutaly, I haven't checked for the Dual Tonne Multi Frequency.


I didn't know about that one. Neat! :) 713,705... Hmm... Let... me... guess... "TIETOS"?

It's a very Petit Circus, isn't it :)
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Message 39709 - Posted: 24 Oct 2004, 14:26:34 UTC - in response to Message 39701.  

> I didn't know about that one. Neat! :) 713,705... Hmm... Let... me...
> guess... "TIETOS"?
>
> It's a very Petit Circus, isn't it :)

NO. Do it again. 713705 without the coma and turn the calculator 180°
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Message 39712 - Posted: 24 Oct 2004, 14:28:03 UTC - in response to Message 39709.  

I know: ROT(713705,180°)="SOLEIL".
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Message 39714 - Posted: 24 Oct 2004, 14:31:13 UTC - in response to Message 39712.  

> I know: ROT(713705,180°)="SOLEIL".

Now I am trying to write Petit but it doesn't seem to work...
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Message 39716 - Posted: 24 Oct 2004, 14:35:42 UTC - in response to Message 39714.  

Good luck finding a "P".
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Message 39740 - Posted: 24 Oct 2004, 16:06:08 UTC - in response to Message 39693.  

> On your touchtone phone, if you had the numbers
> diagonaly, the sums are the same.
>
> 159 + 951 = 1110
> 753 + 357 = 1110
>
>

So do the center 258 + 852 and 456 + 654. It's an ascending (L-R,T-B) 3 x 3 grid. Your center numbers will always add up to identical totals assuming a static interval between populated digits.

Stewie: So, is there any tread left on the tires? Or at this point would it be like throwing a hot dog down a hallway?

Fox Sunday (US) at 9PM ET/PT
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Message 39741 - Posted: 24 Oct 2004, 16:08:00 UTC - in response to Message 39716.  

> Good luck finding a "P".
>

Some scientific calculators that do hexidecimal represent the hex characters as lower case. Therefore a "d" would serve your purpose quite well... :o)

Stewie: So, is there any tread left on the tires? Or at this point would it be like throwing a hot dog down a hallway?

Fox Sunday (US) at 9PM ET/PT
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Message 39749 - Posted: 24 Oct 2004, 16:51:46 UTC - in response to Message 39741.  

> > Good luck finding a "P".
> >
>
> Some scientific calculators that do hexidecimal represent the hex characters
> as lower case. Therefore a "d" would serve your purpose quite well... :o)

Yeap, but what about the "T"

I knew about the grid, I was just playing
stupid. Was I ? Or is it my true nature ?
Get me my psy now !!!
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Message 39778 - Posted: 24 Oct 2004, 20:21:24 UTC - in response to Message 39714.  

> > I know: ROT(713705,180°)="SOLEIL".
>
> Now I am trying to write Petit but it doesn't seem to work...
>
Today in Iraq type 710.77345 and rotate 180 degrees.
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Message 39818 - Posted: 25 Oct 2004, 0:02:35 UTC
Last modified: 25 Oct 2004, 0:03:40 UTC

So much for equations...
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Message 39819 - Posted: 25 Oct 2004, 0:08:21 UTC - in response to Message 39818.  

> So much for equations...

We are just doing what we can here ! While in school I was playing
with my calculator trying to form words, watching the clock and fishing
in my nose while the teacher was trying to make me learn something.
Ok I will make an effort and find a good one. Just give me some time
to go back in my old engeneering books.
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Message 39822 - Posted: 25 Oct 2004, 0:39:57 UTC

Ha Ha !!! Beat that. Taken from my Thermodynamics exam.
This equation shows why american weight lifter needs to
take steroids.



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Message 39920 - Posted: 25 Oct 2004, 7:45:42 UTC - in response to Message 39822.  

Ah, but it is elegant?

It also occurred to me that x=x+1 is not an equation, but rather an increment operation in computing (Oops!). Solving it would result in:
x = x + 1
x - x = 1
0 = 1

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Message boards : Cafe SETI : Elegant Equations


 
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