math

[Fist and Faith]

Excellent posts, Malik!!!

[Avatar]

Excellent post indeed. I particularly liked this last bit:

So "reverse engineering," as you put it, may happen sometimes or even most of the time. But this still doesn't explain why the world can be reverse engineered in the first place. Why do physical structures so easily and prolifically conform to non-physical, immaterial patterns of pure abstraction? What is the link between these two seemingly disparate realms?

In a sense, your explanations do support my own view as well though, in as far as it is the failure of an equation to "make sense" that leads to the reworking thereof, to take into account, or understand, the nonsensical result.

Thanks for the clarification though, made for good reading indeed.

--A

[lucimay]

wow! brainy math guys !!

Malik...i'm with Av...this is lovely!!!

It's as if the math already, always existed as a realm to discover, rather than something we invent after the fact to fit our observations. So "reverse engineering," as you put it, may happen sometimes or even most of the time. But this still doesn't explain why the world can be reverse engineered in the first place. Why do physical structures so easily and prolifically conform to non-physical, immaterial patterns of pure abstraction? What is the link between these two seemingly disparate realms?

thanks Fist, for turnin me on to this thread!!! great discussion!!!!

[Fist and Faith]

Go Luci!
Go Luci!
Go Luci!
It's your birthday!

[lucimay]

good grief! and here i've always been under the impression i was born in August!!!

[Fist and Faith]

Live and learn, babe.

[Warmark]

Cool what other maths can we talk about now

How about √(-1) ? Utter nonsense, of course, but occasionally makes working out a problem a little easier.

Heh, i just finished doing this in shcool.

√(-1) = i

*does the smart dance*

[Fist and Faith]

Heh. I knew that the sq rt of -1 was called i, but I have no idea how it can be, what it's used for, or any other damned thing.

[Gil galad]

Imaginary numbers are awesome, they make life infinitly easier for phyics students!!

Sometimes we also use j so as not to confuse with i for currents.

[Fist and Faith]

Just got this email.

Fifty Years of Math 1957 - 2007 (in the USA)

Last week I purchased a burger at Burger King for $1.58. The counter girl took my $2 and I was digging for my change when I pulled 8 cents from my pocket and gave it to her. She stood there, holding the nickel and 3 pennies, while looking at the screen on her register. I sensed her discomfort and tried to tell her to just give me two quarters, but she hailed the manager for help. While he tried to explain the transaction to her, she stood there and cried. Why do I tell you this?

Because of the evolution in teaching math since the 1950s:

1. Teaching Math In 1950s

A logger sells a truckload of lumber for $100. His cost of production is 4/5 of the price. What is his profit ?


2. Teaching Math In 1960s

A logger sells a truckload of lumber for $100. His cost of production is 4/5 of the price, or $80. What is his profit?


3. Teaching Math In 1970s

A logger sells a truckload of lumber for $100. His cost of production is $80. Did he make a profit?


4. Teaching Math In 1980s

A logger sells a truckload of lumber for $100. His cost of production is $80 and his profit is $20. Your assignment: Underline the number 20.


5. Teaching Math In 1990s

A logger cuts down a beautiful forest because he is selfish and inconsiderate and cares nothing for the habitat of animals or the preservation of our woodlands. He does this so he can make a profit of $20. What do you think of this way of making a living? Topic for class participation after answering the question: How did the birds and squirrels feel as the logger cut down their homes? (There are no wrong answers, and if you feel like crying, it's ok. )


6. Teaching Math In 2007

Un hachero vende una carretada de maderapara $100. El costo de la producciones es $80. Cuanto dinero ha hecho?

[Fullmetal660]

dAN really isn't kidding. (Well not much anyway.) I have nightmares that revolve around the words "borange, storange, gorange, forange, dorange, porange, corange, zorange, yourange, worange, xorange, torange, sorange, chorange, shorange, plorange, phorange, blorange, chlorange, horange, jorange, korange, lorange, morange, norange, quorange, roarange, vorange, floorange" and so on. Screaming I think I was. Screaming. Oh will it ever end?

I think you'll find that "sporange" is a word, its some sort of botanical term so its hard to find in a dictionary, but its definatly a word that rhymes with orange.

[Fist and Faith]

These are for Av, the resident Doubting Thomas. Only about a minute each.
www.worldscienceu.com/science_unplugged ... s-of-space
www.worldscienceu.com/science_unplugged ... ing-theory
www.worldscienceu.com/science_unplugged ... dimensions

[Avatar]

Hahaha, thanks Fist. I'll check them out when I'm at home.

--A

[Fist and Faith]

These short clips don't oppose your view, btw, Av. Brian Greene makes it clear that the math says X, but that's not the same as proving X is fact. It means there's reason to look for evidence of X. And, in these cases, so far, no evidence has been found. The mathematical theory is excellent, but it's only that. Maybe a flaw will be found with the theory. Maybe evidence supporting it will be found.

[Avatar]

See? It's imaginary. (Thanks btw...I forgot to watch them. Bookmarked now. )

--A

[Vraith]

I think this will be of interest to at least Hashi---maybe others.
The first is an article/interview about the guy, the second is the thing he created.
At that place, you might want to click on the music link to find some math in sound [and you can alter various things about how it plays...tempo, instruments and such]

https://www.quantamagazine.org/20150806 ... interview/

https://oeis.org/

[Morning]

Tegmark's thing caught my eye a while back, but I think he's wrong.

arxiv.org/abs/0704.0646

Bohm (and deBroglie with his assistant, my former - and quite dead by now - professor Andrade e Silva) got it right in the first place.

www.david-bohm.net/

At long last, a math thread. This will be fun.

[Hashi Lebwohl]

I think this will be of interest to at least Hashi---maybe others.
The first is an article/interview about the guy, the second is the thing he created.
At that place, you might want to click on the music link to find some math in sound [and you can alter various things about how it plays...tempo, instruments and such]

That is definitely right up my alley. Sadly, my life did not go down the path of "professional mathematician", which would have necessitated working in a classroom at some university or a sub-basement in some lettered government agency, but that doesn't meant that working with numbers is like breathing for me--totally natural.

[peter]

Mathmeticians at The University of Washington Bothell have discovered a new type of 'pentagon tilling' the first new type of 'tilling the plane' with a single polygon discovered since 1985.

[Ur Dead]

Where Pythagorean Theorem is a 3rd order equation.
Has anybody tried to formulate a 4th order equation?

Had a friend who tried to do that. Never did solve it.
(Past away back in the early 90's)