SERVING THE QUANTITATIVE FINANCE COMMUNITY

 
User avatar
Collector
Topic Author
Posts: 4727
Joined: August 21st, 2001, 12:37 pm

x?

August 1st, 2020, 12:33 pm

(U+2610+\(\mu^2\))x =0

what is x ?
 
User avatar
Cuchulainn
Posts: 62898
Joined: July 16th, 2004, 7:38 am
Location: Amsterdam
Contact:

Re: x?

August 1st, 2020, 1:06 pm

Step over the gap, not into it. Watch the space between platform and train.
http://www.datasimfinancial.com
http://www.datasim.nl
 
User avatar
trackstar
Posts: 27503
Joined: August 28th, 2008, 1:53 pm

Re: x?

August 1st, 2020, 1:49 pm

(U+2610+\(\mu^2\))x =0

what is x ?
Cuchulainn:

Depends

https://en.wikipedia.org/wiki/Zero_divisor


** 

Interesting, but is it also fair to ask about U?

If U= 
(-2610-\(\mu^2\)), 
then obviously x can be anything at all!
 
User avatar
Alan
Posts: 10323
Joined: December 19th, 2001, 4:01 am
Location: California
Contact:

Re: x?

August 1st, 2020, 3:54 pm

So, x can be a squirrel?  :D
 
User avatar
trackstar
Posts: 27503
Joined: August 28th, 2008, 1:53 pm

Re: x?

August 1st, 2020, 4:13 pm

So, x can be a squirrel?  :D
Or a cup of mocha almond ice cream, which I am eating outside right now.

It is better than x!! :D

But back to math:
 
User avatar
katastrofa
Posts: 9580
Joined: August 16th, 2007, 5:36 am
Location: Alpha Centauri

Re: x?

August 1st, 2020, 6:31 pm

(U+2610+\(\mu^2\))x =0

what is x ?
With U+2610 standing for a box  symbol sa=tanding for a d'Alembertian, it's a free field (no particle interactions) Klein-Gordon equation, and the solution x, a.k.a. [$]\phi[$], is a plane wave.
 
User avatar
Collector
Topic Author
Posts: 4727
Joined: August 21st, 2001, 12:37 pm

Re: x?

August 2nd, 2020, 7:09 am

(U+2610+\(\mu^2\))x =0

what is x ?
With U+2610 standing for a box  symbol sa=tanding for a d'Alembertian, it's a free field (no particle interactions) Klein-Gordon equation, and the solution x, a.k.a. [$]\phi[$], is a plane wave.
Correct! U+2610 is unicode for Box, and this means it is the K-G equation. 

And the Winning prize is a full zero spin with the Higgs boson! (that probably hides in a Klein (Gordon?) bottle)

\((\Box+\Delta-\nabla^2+\mu^2)\psi=0\)
 
User avatar
Cuchulainn
Posts: 62898
Joined: July 16th, 2004, 7:38 am
Location: Amsterdam
Contact:

Re: x?

August 2nd, 2020, 12:15 pm

Sounds like a monologue interior to me. 
More undefined symbols, meshuggah

BTW [$]\Delta == \nabla^2[$]

or have those finicity physicists discovered  a new symbol?
Step over the gap, not into it. Watch the space between platform and train.
http://www.datasimfinancial.com
http://www.datasim.nl
 
User avatar
Cuchulainn
Posts: 62898
Joined: July 16th, 2004, 7:38 am
Location: Amsterdam
Contact:

Re: x?

August 2nd, 2020, 12:28 pm

(U+2610+\(\mu^2\))x =0

what is x ?
Cuchulainn:

Depends

https://en.wikipedia.org/wiki/Zero_divisor


** 

Interesting, but is it also fair to ask about U?

If U= 
(-2610-\(\mu^2\)), 
then obviously x can be anything at all!
Correct! Exactement!
The real problem is that Collector had not defined ..

Alan says squirrel, I say witch.

www.youtube.com/watch?v=pWS8Mg-JWSg
Last edited by Cuchulainn on August 2nd, 2020, 12:33 pm, edited 1 time in total.
Step over the gap, not into it. Watch the space between platform and train.
http://www.datasimfinancial.com
http://www.datasim.nl
 
User avatar
Collector
Topic Author
Posts: 4727
Joined: August 21st, 2001, 12:37 pm

Re: x?

August 2nd, 2020, 12:32 pm

(U+2610+\(\mu^2\))x =0

what is x ?
Cuchulainn:

Depends

https://en.wikipedia.org/wiki/Zero_divisor


** 

Interesting, but is it also fair to ask about U?

If U= 
(-2610-\(\mu^2\)), 
then obviously x can be anything at all!
Correct!
The real problem is that Collector had not defined ..

Alan says squirrel, I say witch.
and I indicated Unicorn (between the lines)
 
User avatar
trackstar
Posts: 27503
Joined: August 28th, 2008, 1:53 pm

Re: x?

August 2nd, 2020, 12:43 pm

Haha - it is fine giving credit where due and if you plugged that equation from the original post into Google - the Unicode for box is the top hit.

Back in the 1980s, I had to load hexadecimal codes in manually for character set for my first computer. A good intro to primitive computing.
Last edited by trackstar on September 20th, 2020, 11:10 pm, edited 1 time in total.
 
User avatar
Collector
Topic Author
Posts: 4727
Joined: August 21st, 2001, 12:37 pm

Re: x?

August 2nd, 2020, 12:59 pm

"Alan says squirrel, I say witch."
Screen Shot 2020-08-02 at 2.55.27 PM.png
can u see where the cat is hiding? (typeset in LaTeX )
 
User avatar
trackstar
Posts: 27503
Joined: August 28th, 2008, 1:53 pm

Re: x?

August 2nd, 2020, 1:08 pm

"Alan says squirrel, I say witch."

Screen Shot 2020-08-02 at 2.55.27 PM.png

can u see where the cat is hiding? (typeset in LaTeX )
Riding on the front of the broomstick!  Let's see what happens when you type witch into Wolfram Alpha, one moment...

Interesting - a good listing, including this word frequency histogram

Image

See also some interesting word facts and AI-powered stream of consciousness here: Wolfram Alpha query "witch"

And so, here is a brainteaser for all of you: 

(Wolf(ram) + Python + witch) x^pandemic = ?

Back to research now!  
 
User avatar
Collector
Topic Author
Posts: 4727
Joined: August 21st, 2001, 12:37 pm

Re: x?

August 2nd, 2020, 1:24 pm

LaTeX math commands u possibly don't know, that are essential to know

\xrightwitchonbroom*{f_{1}+\dots+f_{n}} gives
Screen Shot 2020-08-02 at 3.25.27 PM.png
 
User avatar
trackstar
Posts: 27503
Joined: August 28th, 2008, 1:53 pm

Re: x?

August 2nd, 2020, 1:35 pm

LaTeX math commands u possibly don't know, that are essential to know

\xrightwitchonbroom*{f_{1}+\dots+f_{n}} gives

Screen Shot 2020-08-02 at 3.25.27 PM.png
Very nice! The authors of the top book shown here really missed an opportunity - should have added an Appendix with such information! : )

MatLab also lacks a sense of humor, but I have found that Wolfram and even the Wolfram Language certainly have one.
LatexMatlab.JPG
Testing some calculations with new friends a few weeks ago:

  2:32 PM
/wolfie Mass of Arnold Schwarzenegger in Planck Masses
 
 2:32 PM
/wolfie Mass of Arnold Schwarzenegger / 21 micrograms

 
2:32
about 5.38 billion
2:32
about 5.19 billion Planck masses


So, you see, the precision of terms and numerics matters! (And impacts the calculation time too.)
ABOUT WILMOTT

PW by JB

Wilmott.com has been "Serving the Quantitative Finance Community" since 2001. Continued...


Twitter LinkedIn Instagram

JOBS BOARD

JOBS BOARD

Looking for a quant job, risk, algo trading,...? Browse jobs here...


GZIP: On