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9924121 No.9924121 [Reply] [Original]

It's incredible that physicists did dimensional analysis during hundreds of years without any formalisation, they don't even know if their operations with dimensions in their equations are really mathematically consistent, this really proves the point that mathematics>physics imo.
The closest we got to a formalisation of dimensional analysis is a blog post from a mathematician (lmao): https://terrytao.wordpress.com/2012/12/29/a-mathematical-formalisation-of-dimensional-analysis/
This is mind blowing.

>> No.9924129
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9924129

if a=b then a/b =1 and we can multiply and cut shit out lmaooo let's do physics without and formalisation xddd :D

>> No.9924130
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9924130

physishits will defend this

>> No.9924131

>>9924121
I'm still in the intro section and he already mentioned Clifford algebras.

That and Grassman algebras have been used by physicists for over 200 years. Do you lack reading comprehension or is it willful ignorance?

The girl in your pic looks like my gf. I'm gonna go fuck her now.

>> No.9924135
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9924135

>>9924131
your girlfriend is a hooker then.

> physicists use clifford algebra and grassman algebra therefore they formalised dimensional analysis,

>> No.9924142

>>9924135
A more intelligent man might ask WHY this is a blog post rather than a paper?

Because it doesn't contribute anything new or useful to physicists.

It's there to help brainlets understand some basic notions in differential geometry that are already being used by physicists.

>> No.9924153
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9924153

>>9924142
>Because it doesn't contribute anything new or useful to physicists.

It does contribute new things to physicists, but it doesn't deserve a paper because Terry Tao and mathematicians in general are on another level.

>> No.9924156

>>9924142
>It's there to help brainlets understand some basic notions in differential geometry that are already being used by physicists.
Not the point of the blog post btw. I know it's hard to physicists understand the concept of formalisation or even a mathematical proof.

>> No.9924164

>>9924121
>whore for attention

ignoring thread

>> No.9924168

>>9924164
You didn't ignore the thread because you just posted a reply in it, are all physishits this dumb?

>> No.9924180
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9924180

>>9924168
>not knowing sage exists

>> No.9924218

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

>> No.9924238

>>9924180
fuckoff frogposter

>> No.9924274

>>9924238
fuck off new fag

>> No.9924280

>>9924274
i hope you die with herpes.

>> No.9924965

>>9924121
>he needs formalisation or otherwise is stopped by his autism
OP is a low iq poster. They knew what they were doing was fine, they didn't need some autistic sperglord to write fantasy novels about it.

>> No.9925348

>>9924156
What is math???
That part of physics where experiments are cheap. Fuck off with you autism.

>> No.9925368

>>9924280
>herpes isn't life-threatening
>implying that you simply hopes he catches herpes and dies at some point

>> No.9925449
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9925449

Any computer language that is equivalent to first order formal logic?

>> No.9925489

>>9924121
You know the main thing Physicists are taught is to approach a problem by making it simpler, right?

Formalization to that extreme isn't something anyone who is looking to understand and solve problems would ever do.

>> No.9925529

hey mathematicians and physicists, if we are so smart why are politicians in charge of international affairs instead of being the public face of an elite group of clever manipulators? wait...

>> No.9925532

>>9925449
literally sql

>> No.9925551

>>9925489
That's why engineers don't go to grad school. Real physicists doing actual research need formalism.

>> No.9925558
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9925558

>>9925489
heard you talkin shit about formalism

>> No.9925609

>>9924121
I've used dimensional analysis to derive the cubic formula.
It helps rule out which combinations of coefficients can be added together.

If you look at the quadratic/cubic/quartic formulas, you will find that the coefficients respect the rules of dimensional analysis.

As an example:
Let x^2 + ax + b = 0 [length^2]
x has units of length, a has units of length, b has units of length^2
a/2 has units of length.
a^2 - 4b has units of length^2
sqrt(a^2 - 4b)/2 has units of length.

The rules of algebra pretty much force the dimensional analysis to work the way it does.

>> No.9925618

>>9924121

The Rhind Papyrus is a 3500 year-old ancient Egyptian document of elementary applied math. Large parts of the document are dedicated to unit conversions between various units of length, area, time, and particularly volume.

>> No.9925669

>>9924131
>no tits Benedict Cumberbatch as a gf
I see why you are so angry.

>> No.9925693

>>9925669
>i have no argument
>not liking Anjelica/Katherine A/Snejanna

>> No.9925698

>>9925693
First of all, I don't have an argument because I don't care about what physicists and other degenerates do. Life is too short to care about whatever degenerates have going on in their minds. And second, if you unironically find a girl with no tits and a man face attractive then I think that is just your repressed homosexuality trying to get out. If you find her attractive I'm sure you will cum buckets just cutting the bullshit and jerking off to men.

>> No.9925727

>>9924121
>needing some autistic “forkalization” for dimensional analysis
lmao what a joke you people are dumber than high schoolers

>> No.9925758

>>9925698
>waaah i don't like how this girl looks
>i'll just call her a man, that'll shame him!
>degenerates
look in the mirror

>> No.9925774
File: 12 KB, 214x317, benadrl.jpg [View same] [iqdb] [saucenao] [google]
9925774

>>9925758
Does he make your butt hard?

>> No.9925811

Is there a formal definition for 'abuse of notation'?

>> No.9925851

>>9925811
There can't be a formal definition in the formal sense of abuse of notation because it is not a mathematical concept, but a literary concept that lies above mathematics.

>> No.9926054

>>9925774
They look nothing alike, stop pretending like they do. It makes you look like an idiot.

>> No.9926192

>>9925774
yes

>> No.9926213

>>9924129
Hurr Durr formalisation is the only way a mathematician could use logic /s

>> No.9926214

>>9925698
Fuck off, nobody shits on Ms Boyd and lives to tell about it.

>> No.9926223

>>9926213
it's the best way, shitgineer.

>> No.9926660

>>9924121

For me math was pure math, then I went into physics. Physics to math is deep diving, beware. Thats dividing by zero.

>> No.9926663

>>9926660

> dimensions was pure math

>> No.9926678

>>9926214
>being a whiteknight for an ugly internet woman that will never know you exist
Cucked and blue pilled.

>> No.9926686
File: 1.28 MB, 1126x696, cucked.png [View same] [iqdb] [saucenao] [google]
9926686

>>9926054
Does he make your butt hard... now?

>> No.9926689

>>9924121
dimensional anal is how i got through two physics classes
I learned nothing

>> No.9926690

>>9926689
After you finished those classes what were the dimensions of your asshole?

>> No.9926693

>>9926690
Length of the radius of my asshole I guess.
So just the one dimension.

>> No.9926695

>>9926693
>assholes are flat
You really did learn nothing.

>> No.9926735

>>9926223
Best is subjective

>> No.9926804

>>9926686
are u really that retarded

>> No.9926812

>>9926804
Is your butt not getting hard?

>> No.9926833

>>9924121
>It's incredible that physicists did dimensional analysis during hundreds of years without any formalisation, they don't even know if their operations with dimensions in their equations are really mathematically consistent

The fuck are you talking about?

>> No.9926843

>>9924121
Why bother with formalism when you can get the right answer with heuristics?

>> No.9926847

>>9926686
Wow, they do look really similar.
>>9926804
Are you really that homosexual?

>> No.9926856

>>9926847
If someone photoshopped her hair onto his face these closet homosexuals would be fingering their assholes in no time.

>> No.9927299

>>9924168
you're a gay faggot

>> No.9927374

>>9924121
>Have constants m, s, kg and J
>Know that 1 J =1 kg * m^2/s^2
>Know that your answer should be some multiple of J
>Without knowing the exact values of these constants, do basic algebra

Wow, so impressive.

>> No.9927673

>>9926833
>The fuck are you talking about?
dimensional analysis.

>> No.9927684

>>9927374
Still might not make any sense, that's the tricky part

>> No.9927685

>>9924121
hnngh I want to pee on her tits.

>> No.9928543

>>9926686
>two pictures side by side
>that means they look similar
1/10

>> No.9928548

Isn't dimensional analysis just basic algebra?