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/sci/ - Science & Math

File: 74 KB, 600x307, Okazaki.png [View same] [iqdb] [saucenao] [google]

Hieroglyphs Anonymous Wed Oct 11 15:17:51 2017 No.9227031 [Reply] [Original]

What are the most outlandish notations you have ever encountered /sci/?
>take your Standard Model Lagrangian outta here

>>	Anonymous Wed Oct 11 15:48:34 2017 No.9227092 https://en.wikipedia.org/wiki/Bra-ket_notation

>>	Anonymous Wed Oct 11 16:29:34 2017 No.9227180 File: 28 KB, 481x384, ChaosBook.png [View same] [iqdb] [saucenao] [google] http://www.streamsound.dk/book1/chaos/Chaos/assets/basic-html/index.html#1

>>	Anonymous Wed Oct 11 19:52:13 2017 No.9227775 >>9227180 If you don't understand this you might be retarded

Anonymous Wed Oct 11 20:47:00 2017 No.9227874
File: 140 KB, 1600x979, designlangauge-1.jpg [View same] [iqdb] [saucenao] [google]

Mechanical Notation, Charle's Babbage's crazy way of drawing machines. We still don't understand it.

http://www.i-programmer.info/news/82-heritage/8506-plan-28-makes-progress-in-understanding-babbages-mechanical-notation-.html

>>	Anonymous Wed Oct 11 20:51:48 2017 No.9227881 >>9227031 >Moon Runes : The Thread

>>	Anonymous Wed Oct 11 23:56:06 2017 No.9228169 >>9227092 no

>>	Anonymous Thu Oct 12 00:43:27 2017 No.9228265 >>9227031 >inb4 Shinichi Mochizuki

>>	Anonymous Thu Oct 12 00:44:29 2017 No.9228268 >>9227031 lol I wanna see the latex script for that, son

>>	Anonymous Thu Oct 12 00:47:43 2017 No.9228274 File: 141 KB, 613x352, p_39.jpg [View same] [iqdb] [saucenao] [google] >>9227031 Yours is ridiculous

>>	Anonymous Thu Oct 12 01:21:14 2017 No.9228314 I only have 1 big diagram in my thesis

>>	Anonymous Thu Oct 12 06:15:32 2017 No.9228651 >>9227874 I looks like a pre-computer form of VPL

>>	Anonymous Thu Oct 12 06:35:59 2017 No.9228669 >>9228651 to this day we don't have verilog for mechanical systems, cause gears and shit actually have to go places.

>>	Anonymous Thu Oct 12 06:49:20 2017 No.9228691 >>9227874 Looks like a wiring diagram or function block code, cool.

>>	Anonymous Thu Oct 12 08:23:52 2017 No.9228780 File: 18 KB, 617x213, 617px-Penrose_covariant_derivate.svg.png [View same] [iqdb] [saucenao] [google] >>9228691 Penrose Tensor Notation

>>	Anonymous Thu Oct 12 09:40:42 2017 No.9228852 >>9228274 What exactly is it, anon?

Anonymous Thu Oct 12 09:54:28 2017 No.9228865
File: 9 KB, 320x180, begriffsschrift.jpg [View same] [iqdb] [saucenao] [google]

Gentzen's way of writing proofs

>>9228274
This is actually just a (big) commutative diagram, like when you write [math]A \overset{f}{\longrightarrow} B[/math] to say f is a map from A to B.

>>	Anonymous Thu Oct 12 10:04:47 2017 No.9228877 File: 18 KB, 480x360, begriffsschrift.jpg [View same] [iqdb] [saucenao] [google] >>9228865 Actually Frege, not Gentzen

>>	Anonymous Thu Oct 12 10:25:16 2017 No.9228911 File: 92 KB, 1618x1828, string diagram.png [View same] [iqdb] [saucenao] [google] >>9228780 Another use of that notation in some John Baez book about higher dimensional algebra

>>	Anonymous Thu Oct 12 14:01:29 2017 No.9229226 >>9228911 Ehat the heck is that

>>	Anonymous Thu Oct 12 14:38:46 2017 No.9229292 >wagon wheels

>>	Anonymous Thu Oct 12 15:02:53 2017 No.9229326 >>9228911 what the actual fuck

>>	Anonymous Thu Oct 12 16:09:54 2017 No.9229450 >>9228911 ?

>>	Anonymous Thu Oct 12 16:22:29 2017 No.9229475 >>9227775 OP said outlandish, not difficult.

>>	Anonymous Thu Oct 12 19:07:21 2017 No.9229869 >>9227031 those sums look like they're about to murder their entire clan

>>	Anonymous Thu Oct 12 20:12:15 2017 No.9229991 >>9228877 Frege made everything unnecessarily difficult

>>	Anonymous Thu Oct 12 20:51:25 2017 No.9230046 File: 183 KB, 778x827, Screenshot (30).png [View same] [iqdb] [saucenao] [google] aaaaaaaaaa

>>	Anonymous Thu Oct 12 21:09:52 2017 No.9230085 >>9227031 [math]i^{2}[/math] No idea what it means.

>>	Anonymous Thu Oct 12 21:16:04 2017 No.9230096 File: 188 KB, 303x450, 1501771168318.jpg [View same] [iqdb] [saucenao] [google] >>9228911 >there are brainlets ITT right now that don't understand graphical calculus Are you serious?

>>	Anonymous Fri Oct 13 00:53:09 2017 No.9230390 >>9230096 is that like where you look for the max or min

>>	Anonymous Fri Oct 13 02:57:26 2017 No.9230527 File: 106 KB, 522x711, image004.gif [View same] [iqdb] [saucenao] [google] not necessarily notation but it looks cool

>>	Anonymous Fri Oct 13 07:42:58 2017 No.9230797 >>9228911 >tfw your branch of mathematics is closer to transplantational surgery than to calculus

>>	Anonymous Fri Oct 13 07:58:29 2017 No.9230815 File: 80 KB, 718x445, 01.png [View same] [iqdb] [saucenao] [google] hairer.org/notes/Regularity.pdf

>>	Anonymous Fri Oct 13 08:09:04 2017 No.9230819 File: 1.95 MB, 1600x1129, Metabolic_Pathways_for_plotter_landscape_quantized.png [View same] [iqdb] [saucenao] [google] I'm a mathematician but I bow before the might and complexity of biochemical pathways.

>>	Anonymous Fri Oct 13 10:56:51 2017 No.9231005 Diagrammatic algebra. Diagrammatic algebra everywhere.

Anonymous Fri Oct 13 16:44:21 2017 No.9231703
File: 18 KB, 518x368, vile physicist sorcery.png [View same] [iqdb] [saucenao] [google]

>>9228911
i just find it incredible that string diagrams and graphical calculus exist, much less actually work and be useful for stuff like QFT
what is the name of that theorem that guarantees the existence of these diagrams
this is some black magic shit

>>	Anonymous Fri Oct 13 16:53:10 2017 No.9231719 File: 302 KB, 918x1394, tracks.jpg [View same] [iqdb] [saucenao] [google] If someone knows this, please tell me. I found a pdf about it in 2013 but at the time couldn't understand it, and I cant find anything about it now.

>>	Anonymous Fri Oct 13 17:02:06 2017 No.9231730 File: 139 KB, 1280x720, Date a Live Director's Cut - 05 (BD 1280x720 AVC AAC).mp4_snapshot_07.38_[2017.10.01_22.58.33].jpg [View same] [iqdb] [saucenao] [google] >>9228911 可愛い

Anonymous Fri Oct 13 21:31:33 2017 No.9232091
File: 16 KB, 102x155, yukari_(not cameron_diaz).png [View same] [iqdb] [saucenao] [google]

>>9231719
These 6j symbols are what's more generally referred to as fusion matrices for a conformal field theory. Let [math](\mathscr{V},\{V_i\}_i)[/math] be a simple modular category with simple objects [math]V_i[/math] and some fixed set of fusion rules, then there exists a covariant functor [math]F:\text{Rib}_\mathscr{V} \rightarrow \mathscr{V}[/math] from the ribbon category based on [math]\mathscr{V}[/math] to [math]\mathscr{V}[/math] called the operator invariant. This functor allows you to cast fusion rules in the form of ribbon graphs as well as express some results regarding the dimensions and traces of objects in [math]\mathscr{V}[/math] as knot invariants. This allows you to prove fusion relations such as the pentagon/hexagon relations, Verlinde-Seiberg formula and Vafa's theorem with braids and knots. In addition if [math]\mathscr{V}[/math] is unitary metaplectic then these fusion matrices form a [math]\mathbb{C}[/math]-vector space called the space of conformal blocks. In this case the 6j-symbols are basically instructions for fusing the simple objects of [math]\mathscr{V}[/math] as Hilbert spaces and you can consider it as relations between knots or ribbon graphs WLOG. For instance, the fusion matrix [math] F_{pq}\left[\begin{bmatrix} i & j \\ k & l\end{bmatrix}\right] [/math] can be considered as a consistency condition between fusing objects [math]i,j,k[/math] by fusing [math]i,j[/math] first into [math]p[/math] and then fusing [math]p,k[/math] into [math]l[/math] or first fusing [math]j,k[/math] into [math]q[/math] then fusing [math]i,q[/math] into [math]l[/math].

>>	Anonymous Fri Oct 13 21:46:50 2017 No.9232100 >>9230819 i want this in not shit res

>>	Anonymous Fri Oct 13 22:27:08 2017 No.9232161 >>9228911 >tfw trancended formal proofs and now pictures are the new numbers

>>	Anonymous Sat Oct 14 04:29:36 2017 No.9232467 >>9232100 https://www.cc.gatech.edu/~turk/bio_sim/articles/metabolic_pathways.png

>>	Anonymous Sat Oct 14 05:01:35 2017 No.9232498 >>9228911 This is almost like proof via interpretive dancing.

>>	Anonymous Sat Oct 14 05:29:25 2017 No.9232507 >>9227092 I've seen it so many times but I still don't know how it works.

>>	Anonymous Sat Oct 14 05:31:13 2017 No.9232509 >>9228911 Nice.

>>	Anonymous Sat Oct 14 09:20:28 2017 No.9232717 >>9232467 >https://www.cc.gatech.edu/~turk/bio_sim/articles/metabolic_pathways.png cheers mate

>>	Anonymous Sat Oct 14 09:44:00 2017 No.9232732 >>9228911 you could also just flip the head over right

>>	Anonymous Sat Oct 14 10:39:41 2017 No.9232786 >>9232091 why are there so many theoretical physics touhouposters on /sci/

>>	Anonymous Sat Oct 14 13:37:39 2017 No.9233024 File: 306 KB, 552x510, test (8).png [View same] [iqdb] [saucenao] [google] >>9232786 There's only one.

>>	Anonymous Sat Oct 14 21:40:13 2017 No.9233748 >>9230527 > Game theory > Being so autistic that you need trigonometry to simulate a negotiation process

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