Post the sexiest math symbols and equations.

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Who cannot appreciate this shit?

>>8831229
The product of the Jews and Germans divided by the Jews is less than that of the Germans

<Germans, Jews>/|Jews| ≤ |Germans|

[math](N=1) \vee (P=0)[/math]

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>>8831229
Daily reminder of that one time based Wildberger revolutionized the symbol industry by introducing the heart.

>>8831273
faggot

d'Alembert operator

Group theory in general. And especially one of the very simplest theorems:
[math]\mid A \mid = \mid A : B \mid \cdot \mid B \mid[/math]

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>reading article/book/assignment/whatever
>typesetted in LaTeX
>see a box
>not sure if missing font or d'Alembert operator

I was once correcting some general relativity exams and a guy had checked a d'Alembert operator like it was a checkbox on the exam sheet. Best symbol ever.

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>>8831253
>1/2*pi
>not 1/tau

>>8831350
that things square.... square HAHAHA

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>>8831429
>1/2*pi
Please don't do this, not everyone assigns * a strictly higher precedence than /
You wouldn't write 1-2+pi to mean 1-(2+pi) either

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>>8831229

Post your H2 O jokes.

These two
>>>8831111

>>8831253
1/2π on the inverse tranform and nothing on the other is for homosexual engineers

>>8831665
It definitely is the greatest symbol in mathematics but not because it represents some silly constant.

>>8831253
hey nice coincidence, got my electronic circuits/networks final in 2 days

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>sexiest math symbols and equations

>>8831350
Ayy lmao what the fuck

[math]\int[/math]

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I got so freaked out with the 1/2pi even though I'm using it this semester

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I like this one because it always make me think of pic related.

>>8831523
Your face is unitary

>>8831333
>a box
Physicists have no souls

>>8831229
58008

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probably depends on your definition of math symbol, but my vote goes to this bad girl

>>8836077

I'll always see this as a hand holding a crowbar.

>>8836090
cannot unsee

[math] \delta [/math]
fairly pleb.
I changed my initials to a linked [math] \delta S [/math] not so long ago.

>>8831523
>homosexual engineers
Nice pleonasm mate

>>8836351
C'mon, man. This is a blue board.

[math]\Gamma_{\alpha \beta \gamma} = g_{\alpha \delta} \Gamma^{\delta}_{\space \beta \gamma}[/math]

[eqn]\to[/eqn]

>>8836077
Combinatory logic is more elegant than lambda-calculus desu
Unfortunately the standard notation -- using ((gf)x) to denote composition instead of g(f(x)) -- severely obscures the (Curry-Howard) connection between combinatory logic and the rest of mathematics, which probably explains its current status of being 4everalone and isolated from the rest of mathematics.

Probably the second biggest mistake of functional theory, after the decision to use [math]g\circ f[/math] (i.e., gf) to denote the process of "first performing f and then performing g".
100 years later and I'm still mad

>>8836090
oh fuck, so that's why it is half-life logo
MIND = BLOWN

>>8836371

>trivial example of index gymnastics.

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>>8831229
Not posting the sexiest equation.

>>8831253
the kerning on

[math]
\exp(-i \omega t)
[/math]

is awful.

8=>

>>8836373
>combinatory logic
>more elegant than lambda-calculus

>g o f is hard to understand

brainlet opinion discarded

[math]{\text{H}}_{et}^k\left( {{{\bar X}_p},{\mathbb{Q}_\ell }} \right) \otimes \mathbb{C} \cong {{\text{H}}^k}\left( {X,\mathbb{C}} \right)[/math]

Angular velocity looks like a thicc booty ω ω ω

[eqn]\oint \\ \prod \\ \nabla \\ \pi[/eqn]

>>8831281
cute

8=D ~~

>>8837775
Balls-cox-sprem operator.

>>8836090
Half-Life 3 Confermed

>>8836714
what are these scribbles

>>8831344
Do you know how I know you're an undergrad?

>>8837897
For a smooth variety over C, the usual cohomology is isomorphic to the l-adic cohomology (tensored C) of the variety taken mod p.

>>8837901
Because he uses \mid instead of \left| \right| ?

It's obviously the Sha

>>8836351
What the fuck is a "closed" triple integral? I suppose you need to integrate a volume embedded in R^4?

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this

>>8831229

[math]2^{\aleph_0} = \aleph_1[\math]

>>8838410
>>8831229


let's try that again

[math]2^{\aleph_0} = \aleph_1[/math]

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>>8838162
>index notation

[eqn] \frac{K}{M} = \frac{H}{L} \phantom{(loss)} [/eqn]

>>8837941
what is a good book on (co)homology?

I'm literally fine with every subject around it (schemes, basic abelian category theory, (non-algebraic) topology, etc.) but have never been able to /into/ (co)homology.

I can even kind of get basic stuff with chain complexes and all; it's the actual applications (such as the one given in your equation) and computation tricks that I'm missing almost totally.

>>8836373
yeah sorry this is a Bad Opinion.

elements should just be thought of as global sections and the connection to CCCs is automatic and your notational issue doesn't even come up.

>>8831229
I've always liked the drag equation myself.
[math]\frac{1}{2}\rho u^{2}C_{d}A [/math]

>>8831923
my nigger

>>8839619
I would say just open up Ch.3 of Hartshorne and work through every exercise.

Maybe read something on De Rham Cohomology first in order to get some topological intuition into place.

>>8831449
and stop the "let's not write out * in algebra" BS too. It was a bad idea.

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I love the del tilde but I've never seen it used. As for Greek letters my favourite is the zeta. The dagger is also pretty sweet.

>>8839076
is this gauss/mean curvature and coefficients of the FFF?

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Verlinde formula is the greatest thing to ever come out of knot theory

>>8840293

you know what I always found funny about mathematical physics?

neither mathematicians nor physicists care about it.

>>8838410
>>8838415
Prove it :^)

>>8838455
not just the notation! it's what that simple symbol is capable of!

>>8836374
I hope you aren't serious

>>8831229
>focusing on the symbols instead of the things they represent
Pseud confirmed.

[math]\partial_{\beta}F^{\alpha \beta} = 4\pi J^{\alpha} [/math]

[math]
\partial_{\alpha}F_{\beta \gamma} + \partial_{\beta}F_{\gamma \alpha} + \partial_{\gamma}F_{\alpha \beta} = 0[/math]

>>8837961
I wondered why the spacing looked so fucking atrocious.)

>>8841619
[math]dF = \ast J[/math]
[math]d\ast F = d^2 A = 0[/math]