A collection of LaTeX equations?

Question

I saw a web-site someday -- it had lots of codes for formulas from many fields of knowledge -- all categorized and searchable. So that when You teach, say, electrodynamics You could come there and get the code for Maxwell equations right away. I lost the linke and can't find the web-site any more.

Do You happen to know some sites like that?

Edit:

summary of solutions:

http://www.equationsheet.com/
Go to wikipedia, find the equation, copy its image as text with Ctrl-c -- and LaTeX code of image gets into the clipboard.

That's either Wikipedia and right click or Springer's LaTeX search. http://latexsearch.com/ — percusse, Jun 15 '13 at 09:01
There is collection of functions on http://functions.wolfram.com/ from there, you can obtain the mathml form for any function (among other forms) and convert that to latex using some tools I saw on the net (may be using xslt or such, or easier, if you have mathematica, copy the input text shown there next to the mathml for the function, paste it into Mathematica and type TexForm[...] on it. That will give the Latex code for that function. It says about the site Already the largest formula compendium for mathematical functions on the web But this is for functions, not equations. — Nasser, Jun 15 '13 at 10:37
@PrzemysławScherwentke: It was a long time ago. A year or something like that. So not a chance. — Adobe, Jun 16 '13 at 09:19
I'm not sure why this is a (La)TeX question. Isn't it about finding a specific website or am I missing something? — Svend Tveskæg, Jun 17 '13 at 09:54
@SvendTveskæg: this might be true. Still who else will know the answer to this question, but the latex community? — Adobe, Jun 17 '13 at 11:21
@percusse -- warning about latexsearch: the code is not always "clean"; it obviously has not been edited for consistency and optimal appearance. in addition, some of the symbols in the latex code are not shown in the output (i saw two instances of upright greek caps -- \Uppsi and \Updelta -- omitted in the responses from a random search using one of the suggested search examples). while this might get one started, the output should always be reviewed for well-sized matching delimiters, proper spacing and alignment, etc. — barbara beeton, Jun 17 '13 at 17:48
@Adobe Perhaps consider a different user name: in general, names which might confuse people ('TeX' and 'MikeTeX' come to mind) tend to be discouraged. — Joseph Wright, Jun 18 '13 at 09:30
@barbarabeeton Fully agree. Actually, I don't touch such automated code at all. However, if there is a complicated matrix or an array it's handy to copy paste the content and leave the syntax out. — percusse, Jun 18 '13 at 17:27
@JosephWright: I picked the name long time ago, when I came to stackoverflow to study emacs. Even before I've been using TeX at all. I used to read a lot books back then, and Adobe alludes to those times -- because Adobe had strond association with "reader" for me. Stil if You insist I'll change it -- for the great respect to Your work. — Adobe, Jun 18 '13 at 19:57
@Adobe I don't insist: it's more that things can get a bit confusing if names looks like names of software, etc. — Joseph Wright, Jun 18 '13 at 20:02
@JosephWright: that has an additional downside for I prefer open source. — Adobe, Jun 18 '13 at 20:13

score 8 · Accepted Answer · answered Jun 18 '13 at 09:28

8

Maybe you mean Equations sheet? (Example of LaTeX code)

answered Jun 18 '13 at 09:28

d-cmst

23,095

That's cool. The web-site seems like a fork of the link I posted. – Adobe Jun 18 '13 at 09:30
@Adobe which link? – d-cmst Jun 18 '13 at 09:31
Here – Adobe Jun 18 '13 at 09:32
uh, for some reason I didn't see your answer – d-cmst Jun 18 '13 at 09:33
In the "fork" you can also login (no idea why you should do that, but I assume it's a feature :P) – d-cmst Jun 18 '13 at 09:36
I just did it -- it allows You to collect You favorite equtions and have a quick access to them ever since. It's sad there's no way to add an equation, or customize the view of the site. – Adobe Jun 18 '13 at 09:40

Adobe · Answer 2 · 2013-06-18T09:51:24.763

7

Today I've been re-reading my LaTeX notes and I fount the link there: http://equplus.net

The web-site is made by a girl and a cat.

edited Jun 18 '13 at 09:51

answered Jun 18 '13 at 09:01

Adobe

3,037

@mozartstraße: this web-site is a good start. I'd say a larger collection is due. I think I'd start collect formulas I type. An on-line wiki resource dedicated to latex codes of formulas categorized by field would be great. – Adobe Jun 18 '13 at 09:24

score 4 · Answer 3 · edited Jun 16 '13 at 12:57

4

Even if you're not logged into Wikipedia, you can go to Edit Page and have the MathML/LaTeX markup code for any equations on that page.

edited Jun 16 '13 at 12:57

Sean Allred

27,421

answered Jun 15 '13 at 15:10

frenchrh

101

View image info on the equation image also can provide a LaTeX code in associated text. – g.kov Jun 18 '13 at 01:19
Even greater: if You just copy the image of equation in Your browser as text (select it and press Ctrl-c) -- the latex code of image gets into a clipboard. – Adobe Jun 18 '13 at 09:42

score 3 · Answer 4 · answered Jun 17 '13 at 11:26

3

for example two sources:

answered Jun 17 '13 at 11:26

The second is cool. – Adobe Jun 17 '13 at 11:46
I just realized that Wolfram changed the behaviour of their formulars. In former times they used the alt field for the LaTeX code of all formulas ... :-( – Jun 17 '13 at 11:57

score 0 · Answer 5 · answered Jun 18 '13 at 08:49

0

Check this link, contains many commands http://www.ntg.nl/doc/biemesderfer/ltxcrib.pdf

answered Jun 18 '13 at 08:49

Manjil P. Saikia

261

That't cool cheatsheet, but I was asking for latex codes of complete equations. – Adobe Jun 18 '13 at 09:02

score 0 · Answer 6 · answered Sep 07 '13 at 10:36

0

Another great resource: http://www.mathtran.org

It's searchable and viewable without registration.

answered Sep 07 '13 at 10:36

Adobe

3,037

A collection of LaTeX equations?

6 Answers6