# Latex Definition and 91 Discussions

Latex is a stable dispersion (emulsion) of polymer microparticles in water. Latexes are found in nature, but synthetic latexes are common as well.
Latex as found in nature is a milky fluid found in 10% of all flowering plants (angiosperms). It is a complex emulsion consisting of proteins, alkaloids, starches, sugars, oils, tannins, resins, and gums that coagulate on exposure to air. It is usually exuded after tissue injury. In most plants, latex is white, but some have yellow, orange, or scarlet latex. Since the 17th century, latex has been used as a term for the fluid substance in plants, deriving from the Latin word for "liquid." It serves mainly as defense against herbivorous insects. Latex is not to be confused with plant sap; it is a distinct substance, separately produced, and with separate functions.
The word latex is also used to refer to natural latex rubber, particularly non-vulcanized rubber. Such is the case in products like latex gloves, latex condoms and latex clothing.
Originally, the name given to latex by indigenous Equator tribes who cultivated the rubber tree, Hevea brasiliensis, was "caoutchouc", from the words caa ('tear') and ochu ('tree'), because of the way it is collected.

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1. ### LaTeX formatting Feynman Diagrams incorrectly

I've been trying to get Feynman Diagrams to work in my LaTeX code, however, the output is not what it is supposed to be. I'm using TeXMaker and TikZ-Feynman to draw the diagrams. My code looks like this: \feynmandiagram [horizontal=a to b] { i1 -- [fermion] a -- [fermion] i2, a -- [photon] b...
2. ### LaTeX Need editor for dvi files to convert latex

I have only my iPhone rn to manipulate files with rn. I need assitence from someone with a latex editor capable of viewing .dvi files to download this linked file (the latest draft of our insight) on my google drive...
3. ### LaTeX Preview button not working as expected

When I create a thread and enter all Latex equations, I want to see how it would appear before posting the thread. So, when I click Preview button, I do not see the compiled thread. I have to reload the browser tab to see the Latex output. Are other people seeing this problem ? Thanks
4. ### Computational Resources for learning LaTEX

Okay so I find myself with quite a bit of time on my hands and I have always been a messy note taker so I decided to learn LaTEX just for the heck of it. I searched for previous threads but they were generally confusing. I have very minimum programming experience. So I would really appreciate it...
5. ### Customize a template in Latex

Hello to everybody! I would like to know if someone could help me customizing the title page (adding information as well as logos) of the template of the kaobook class by Federico Marotta. It is available at the website of Latex templates. Has anyone ever used it? Thank you so much.
6. ### Bug Issue with Latex Equations: I have a screen recording of the problem

My posts all include many equations written in Latex. It seems to me like there are a few bugs related to usage of Latex specifically when just starting a new thread. I've made a short 2 minute screen recording to show the issue I face every single time I want to start a new thread, and the way...
7. ### How can I get the RUN button in Visual Studio Code to turn GREEN again?

I have been using Visual Studio Code for a couple months now and it has been fine. When I want to run some code, there is usually a little green triangle button in the top right corner that I can click on. A few days ago, that triangle turned white only for Python files (it is still green for...
8. ### Labelling a point on the x-axis with PGF-TikZ

I'm confused about wrote a root of function when plotting here graph with pgf-tikz. Any help is welcome.
9. ### Trouble using PythonTex variables in Latex file

I'm using Visual Studio Code as my text editor. My ultimate goal is to use PythonTex in a Latex file so that I can generate multiple versions of the same worksheet for my class. As a test, I defined a variable myvar = "hi" but I can't get it to render correctly in the pdf when I use \py{myvar}...
10. ### LaTex to Work With Symbolic Expressions

For many of the problems in my engineering courses (as well as other STEM courses and maybe even in industry), much of the work is in algebraic manipulation of equations. These problems could be solved using by using symbolic expressions in a coding language like MATLAB. However, it is very...
11. ### Why the ##\#\#\#\### but not just?

I am planning to type my equations in an offline LaTeX editor, simply because it is easier to do. I'll be using LyX. The problem is, it uses ##\#\#\#\###, for single line code, while my editor uses \$\$. Is there any way to overcome this? Am I, seriously, to replace every single \$\$ into...
12. ### LaTeX Program or platform for figures and diagrams

When using latex for writing problems in physics, I find it difficult to make diagrams or figures (such as circuits, atwood machines, lenses, ...) so I wonder if anyone has some recommendations of programs or platforms that can make this "drawings" easy, possibly without the necessity of coding...
13. ### Thinnest possible latex wall?

1/8" ID X 1/64" wall latex tube?
14. ### LaTeX Why is Latex pronounced as "Latec"?

I've always pronounced it as its spell. It seems weird that you pronounce the x as a c/k.
15. ### LaTeX Math Equation Christmas Tree and Graph

I posted this link a couple years ago, but just in case you need to draw a Christmas Tree: https://tex.stackexchange.com/questions/39149/how-can-we-draw-a-christmas-tree-with-decorations-using-tikz There are a lot of interesting variations posted, maybe PF could have our own contest! Here's...

50. ### LaTeX Drawing Software?

Is there a widely used free drawing program that is used in conjunction with LaTeX for math books and physics text? Thanks, Chris