Latex Definition and 999 Threads

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. E

    LaTeX Creating a Time Table with LaTeX

    Hi, I am trying to do a time table as in the following code: \documentclass[a4paper]{report} \usepackage{lscape} \usepackage{multirow} \usepackage{bigstrut} \usepackage{array} \begin{document} \thispagestyle{empty} \pagestyle{empty} \begin{landscape} \begin{tabular}{*{11}{| m{1.5cm} |}}...
  2. I

    LaTeX Where Can I Find a Latex Template for Nature Physics?

    Hi, Does anybody know where I could download a latex template for the magazine Nature Physics? or Nature ? Thank you all.
  3. ArcanaNoir

    LaTeX Can't see (LaTex?) equations using google Chrome

    So... All that stuff with {}{}{} around it, is supposed to look nice? And here I've been trying to learn to read it like a new syntax. (Which I guess it is.) But I hear it's supposed to look like nice stuff, and I needn't be translating it via my head. I'm using google chrome, and have java...
  4. M

    LaTeX Latex: How to Create Line Breaks at 1.5cm Margin

    I'm writing a large set, and the brackets seem to prevent the automatic line break. How do I work around this? I would like to have the line break be even with my margin of 1.5cm. Thanks!
  5. FeDeX_LaTeX

    LaTeX Is LaTeX Considered a Useful Skill?

    Hello, I didn't know where else to post this so I thought I would post this here. I don't know a huge amount of LaTeX but I find it generally quite easy to use. However, if I were to write a CV, do you think it would be worth putting down that I am able to program in LaTeX? Would it be...
  6. R

    LaTeX Copy Latex in Posts: How-To Guide

    I can no longer click on a Latex image in a post and grab the code for it. Is there a way to do this? It used to be click on the image, the code would come up, and then copy and paste. Now I don't know what to do.
  7. C

    LaTeX LaTex: Problem with ToC in article class

    Hello, I'm using the article class with a table of contents. Everything works fine, except one point: The List of Figures, List of Tables and the Bibliography appars in the Contens with no points between the Name and the Page where they are. For example: Contents 1 Section 1...
  8. E

    LaTeX Latex model for Physical Journals

    Does anyone have the Latex Model for Physical Riview Letters or Physical Riview B? If anyone have, can you send me the model to me? I really need it. Thank you very much!
  9. S

    LaTeX Why are modern prints of math books not printed in LaTeX?

    Title says it all. I was reading my textbook today and it dawned on me that not a single textbook on mathematics that I've read has been printed in LaTeX. Instead, I believe it's printed in Times New Roman. At any rate, I think the font style looks much worse than the standard LaTeX font. Does...
  10. Mech_Engineer

    LaTeX Troubleshooting LATEX Equations

    Is LATEX broken? I put an equation in this thread and it doen't appear to be generating for me... https://www.physicsforums.com/showthread.php?p=3361568#post3361568
  11. N

    LaTeX Learn Latex Code: Best Sources to Get Started

    What good sources are there to learn latex code? Because I'm finding it frustrating trying to post up homework problems and trying to use paint with my laptop is equally frustrating.
  12. BloodyFrozen

    LaTeX Where Do You Download LaTeX?

    I'm pretty sure this is in the wrong forum (move to correct please:smile:). Aside from that, where do you download LaTeX?
  13. S

    LaTeX LaTex in Lyx differs from LaTex on forum?

    Are there supposed to be significant differences in how LaTex is displayed in the Lyx editor and how LaTex is displayed by the processor used by this forum? On this forum, the LaTex expression \int_a^b f(x) dx shows an integral with lower limit a and upper limit b. When I ( as a novice...
  14. Pengwuino

    LaTeX Fixing LaTeX: Tips for Writing In-Line Code

    WAAAAAAH How do I fix latex? When I want to write out tex code in-line with my normal writing, it does stuff like this blah blah blah {3\epsilon^3}\over{\pi} more blah blah blah whereas before it use to be continuous, now it creates a separate row for the tex code. Why come? FIX IT FIX IT...
  15. W

    LaTeX LaTeX end section or subsection

    hello. I'm trying to get better acquainted with\LaTeX\ but I'm having some issues with document hierarchy. I've set LaTeX to automatically indent subsections by 1 inch, subsubsections by 2 in, etc. This way progressive sections "funnel" down the right side of the page. I've already done the...
  16. P

    LaTeX Can't see Latex source in Linux (Firefox)

    I understand that I should be able to see the source for formulas/equations/math symbols people put in their posts, by right-clicking a symbol or equation. I seem to recall that I could do this but I am unable to do it now in Firefox (Ubuntu Linux Lucid). Is there something I need to install...
  17. O

    LaTeX Suggesting Inline LaTeX Expressions in Learning Material

    I recently found out that every LaTeX expression I type is displayed in a new line. I had to search https://www.physicsforums.com/showthread.php?t=499624" tread or any of its links. May I suggest that how to type inline expressions be included in the LaTeX learning material? It would be...
  18. Greg Bernhardt

    LaTeX Why are MathJax images not displaying on my webpage?

    I have enabled MathJax on the site. There are no Latex images being displayed. Please post any problems. I'll leave it enabled for the next hour or so and switch back to images until we are 100% ready.
  19. Y

    LaTeX Latex Should I accept the project?

    Latex ...! Should I accept the project?? Hi there, I need to do a project with my supervisor and he asks me to use Latex in my project...! Now the question is that is Latex normal program I mean like Microsoft Words ? I mean just requiers typing skills?? Or does it require knowing some...
  20. Y

    LaTeX How to type Hamiltonian symbol in latex

    I am having trouble typing the Hamiltonian symbol into latex. I found the symbol in the http://mirrors.med.harvard.edu/ctan/info/symbols/comprehensive/symbols-a4.pdf" , however, I had some difficulties in installing the font and stuff. I am using tex-live. I got the following error...
  21. Femme_physics

    LaTeX Why is LaTeX malfunctioning when I type in equations?

    I keep typing things and getting not the things I typed in LaTeX. Am I the only one? Look at what I'm typing here AD = x^{2}+(4-2x)^{2} AD = x^{2}+(4-2x)+(4-2x) AD = 2x+(-2)+(-2) AD = 2x-4 I'm getting AD = 2x-4x and I'm typing in LaTeX all of that (with the tex /tex function-- I...
  22. S

    LaTeX Can LaTex Define Typographic Functions Similar to Postscript?

    Does LaTex have the ability to define typographic functions, in a manner similar to the way Postscript can? I've only studied LaTex by following examples and I haven't seen any with that degree of sophistication. I'm not talking about whether one can write things like \sin{x} . As an...
  23. O

    LaTeX LaTeX: Text type, displayed type?

    After playing around with MathType's translate to LaTeX tool, I noticed it encloses its translated TeX expressions with either $<expression>$ or $$<expression>$$ depending on whether "Inline Equation" is toggled or not. Being new to TeX, I looked this up, and the wiki page...
  24. Matterwave

    LaTeX Any real easy to use Latex editor out there?

    Hey guys, I need to write up some physics homework, and I'd like to do it on Latex. The only thing is, my eyes start glossing over when I see like the regular latex editors where you have to format things and type a lot of commands just to get the formatting or the text to come out or w/e (I...
  25. G

    LaTeX Printing Latex Code from University Computers

    Not sure where to post this. I'm trying to write my dissertation, and both the examiners and I would prefer it if I used latex for the required notation. The frustrating thing is that even though I do know how to produce latex code, I don't know how to save it into a format that the computer...
  26. B

    LaTeX Latex Graphics Acts Like Nothing Happened, Baffles Student.

    Hi everyone, I'm trying to put graphics into a lab report in LaTeX, and the images simply won't show up. I've tried doing it several ways, including this: \begin{figure}[h] \begin{center} \includegraphics{SeminalEmulsion.jpg} \caption{default} \label{default} \end{center} \end{figure}...
  27. A

    LaTeX Software/Tools for Undergraduate Research: R, Octave, Latex & More

    I am not sure whether I have posted in the right section. As the title says, I want to know which software/technology I need to be familiar with for making a research paper. I am planning to take an undergraduate research program in my university. It is required for us to make a report in...
  28. M

    LaTeX Why latex of this forum is horrible

    Hi, Why latex of this forum is horrible? Sometime it does not write what you are writing. Sometime it does not display latex. Sometime, it does not refresh, it will show the same thing even you delete it. etc...
  29. S

    LaTeX LaTex question - keeping variables on the line

    Is there a way to keep variables in LaTex expressions from being displayed slightly raised above the line of text that surrounds them? Or am I doing something inadvertently that causes some of them to pop-up from the line? For example, the second "n", in the following: a. Prove or disprove...
  30. H

    LaTeX Why Doesn't Latex Preview Work on This Forum?

    Update: Well, apparently the problem is just that the preview doesn't work on this site. The actual post is fine. Homework Statement I can't use this forum well, because any latex tags I type in are removed. For example, see the tex code below. In the preview (and probably in the real post...
  31. R

    LaTeX LaTeX: Numbering/Labeling Examples for Math Papers

    Homework Statement Hello, I just have a question about LaTeX. I am writing a math paper. Is there a way to number/label my examples like I do for theorems and definitions? Thank you. Homework Equations The Attempt at a Solution
  32. Borek

    LaTeX LaTeX Bug: Identical Pictures with Different Code | Physics Forums

    See https://www.physicsforums.com/showthread.php?t=486869 Both pictures identical, but when you click on them code is different.
  33. A

    LaTeX How can I add text to figures in LaTeX using the beamer class?

    Hey, I want to add annotations on figure but can't figure out. I use the beamer class, my figure in in a block. Can anyone tell me how to do this? I tried textblock but did not work. I hear about overpic or psfrag but they don't seem to be what I need. Thanks, Eric.
  34. P

    LaTeX Latex: writing the input/output of program in a report

    I'm working on a report that describes the input and output from Mathematica. Is there any standard way for me to represent them? I done this openoffice already but I want to put my paper into latex. What I currently have in Openoffice format was like this: Input: [1] ________ [2] ________...
  35. M

    Maple How do I export Maple *.mw to latex properly?

    How do I export Maple *.mw to latex properly?? Homework Statement Hi I use Maple 12 and I have a *.mw worksheet file which I am attempting to export to Latex using Maples buildin Maple to latex exporter. I have copied the files from the ETC folder which came with Maple into the latex...
  36. T

    LaTeX Is there a better way to format equations in LaTeX and avoid wasted space?

    I'm doing a homework assignment using latex, so I have to show all the steps in my equations. This creates a lot of situations where I'll have [given] = [something] = [something] ... = [final answer]. If I put it all in line, it tends to run out of room, and if I put it vertically (using...
  37. E

    LaTeX Efficiently Including PS and JPG Files in Latex: A How-To Guide

    Hi everyone, I was wondering if someone could clarify how to put both .ps and .jpg files in the same latex file. At the minute I'm having to convert all my .jpgs to .ps using photoshop then compiling my latex file by going Latex->PS->PDF. However all my converted jpgs look all pixelated...
  38. K

    LaTeX How to Force Limits to Be Above/Below Integral in LaTeX?

    Sometimes when I write an integral or sum the limits are not written out under and above the integral/sum sign, but on the right making the total symbol rather big. I have not cared about this earlier, but this time it makes the equation so big that it doesn't fit the paper. Is there some way to...
  39. M

    LaTeX Can I use feynmf to generate sums of Feynman diagrams?

    Does anyone here use the package feynmf to generate feynman diagrams? I can use it to build diagrams, but I don't know how to build sums of diagrams i.e. diagramA + diagram B + diagram C Does anyone know how to do this? Thanks
  40. bapowell

    LaTeX Why is Latex acting strange on Physics Forums?

    Starting yesterday, when I attempt to include latex in my PF posts, instead of rendering what's between the latex tags, it prints out latex entries from my previous posts! For example, if I were to enter 15 separate latex equations, instead of printing these, it would render my last 15 (those...
  41. T

    LaTeX Equation Number in Latex on left side

    Hi all, When I typeset equations with automatic labeling, the labels (numbers) appear on the left side of the page. I want them on the right side -- where they seem to go by default for everyone else. I'm using TexShop v2.37 for mac. Is there a problem with my template? I'm using...
  42. D

    Mathematica How to get a plot from Mathematica to Latex (in laymens)

    OK. Could somebody please tell me how to get a graph/plot from Mathematica into WinEdit. I've seached on the internet and it all talks about source codes and a lot of other stuff I don't understand. Copy and paste does not seem to be an option! Could some one exlpain to how to do it...
  43. M

    LaTeX Using R and Sweave to Incorporate Graphics in Latex Documents"

    I'm trying to use R and Sweave to make a document. This gives the Latex; \documentclass[a4paper,norsk]{article} \usepackage[latin1]{inputenc} \usepackage[T1]{fontenc} \usepackage{babel,textcomp} \title{test} \author{me} \usepackage{Sweave}...
  44. J

    LaTeX Latex Troubleshooting: Inserting a Lot Detail URL Without Quotes

    I need to type http://www.artnet.com/artists/lotdetailpage.aspx?lot_id=538B3EDF20890B14 into latex but it keeps telling me I need to insert a $ symbol (to make it an equation), but I need the text written like this Is there a way to get round this problem? Thanks.
  45. F

    LaTeX Why doesn't Microsoft Word support LaTeX code?

    Homework Statement I tried MS's "insert equations", but i find that some LaTeX codes don't work and I have to manually click. Is there a faster way?
  46. Q

    LaTeX How Can You Express Complex Numbers in LaTeX?

    I know all the numbers of a real part of an equation is given as \Re How do you express your complex part in the same form?
  47. R

    LaTeX Proof , a small square sign (figure) in latex

    Homework Statement Hi! I am trying to figure out how to create a small square after a proof of some theorem or definition (normally all mathematical proofs are finished by adding a small sguare at the end of it) how do I fix it? It is normally placed on the right side.. Oh I found it...
  48. R

    LaTeX Write Gothic Letters in LaTeX - Get Answers Here!

    Homework Statement Hello! Does anyone know how can I write gothic letters in latex? for example a big gothic ''X'' or ''g'' as a Lie algebra of some group Thanks! Homework Equations The Attempt at a Solution
  49. T

    LaTeX Latex CV Template - Successful Application for Quant Role

    Hey, I've spent a little while trawling the internet for a latex template suitable for an application for a quant role. I thought it would be simple and there are a few examples but what I really want is something that will show in a quite simple way that I have actually used latex to format...
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