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.
Hey guys.
I recently went into a foray in learning LaTeX for my third year project report, because I want it to look professional and it's a good skill to say I have for PhD application.
I have however hit a stumbling block. Below is some sample code:
\begin{table}[!h]
\begin{center}...
Sorry it's not the best Latex, I hope that you can still help me grasp this.
y=2xy1+y(y1)2; y2=C1(x+1/4C1)
So, the solution says to implicitly differentiate and gives y1=C1/2y
So, how did they get the derivative to be this? This is the first chapter in my DE class and I'm rusty with my...
I've been having severe problems trying to get LaTeX expressions to look right using preview -- it seems that only the initial processing run sticks, any corrections made don't seem to register, at least until I post the thread (everything looked fine then). The issue is persistent across...
Hello! I'm a physics/engineering undergrad who is interested in learning to type my homework in LaTex (I have abysmal handwriting, so this would be beneficial to everyone)
Can anyone recommend a free client for OSX that will allow me a large degree of troubleshooting and formatting...
\frac{1}{a^{\dagger}}
I typed (and modified severall times) \frac{1}{a^{\dagger}} and I just see a^\dagger with preview
I submit
Itis correct AFTER submit not when previewing.
I'm a Mac user and I'm looking for some sort of file where I could refer to a bunch of examples of LaTeX equations from PDE, Matrices, ODE, Analysis, Algebra etc. like
\frac{\hbar}{i} \frac{\partial}{\partial t} \psi (x,t) = H \psi
So I could do more cutting and pasting as opposed to...
Homework Statement
Prove that if \int_{-\infty}^{+\infty} f exists, then \lim_{N\rightarrow \infty of {\int_{-N}^{N} f} exists and is equal to the first equation.
Show moreover, that \lim_{N\rightarrow \infty of {\int_{-N}^{N+1} f} and \lim_{N\rightarrow \infty of {\int_{-N^2}^{N} f}...
I know this isn't really general math but here goes,
I need to insert an image into my text on latex, when I put this;
\begin{figure}
\begin{center}
\includegraphics[scale=0.7]{CantBeamPointLoad}
\end{center}
\caption{A cantilever beam with a point load P at the end of the beam}...
I just bought an ereader to help me study (on my bosses time =P ), fantastic little thing by the way, cheap and cheerful, no e-ink display so I have colour. Maybe I will consider a colour e-paper machine when they come out and can turn a page without giving bystanders seizures. For 80 quid I am...
Hey all,
I know this has been discussed before, but seeing that I can't find a post anywhere with a good solution, maybe another discussion won't hurt.
How do you make a script lowercase 'r' in Latex, resembling what you see in eg. Griffiths Electrodynamics?
So far I have found two...
Hi.
When I write my LaTeX code in this forum, it appears completely distorsionated when I click "Preview Changes" in edit mode. For example:
n^2(\rho) = n^2_0\left(1-\alpha^2\rho^2)\right) is shown as a "z" if previously I wrote z. In fact, I don't know if this post will be shown well...
Hi.
I have two questions:
1) Is there a latex tag anywhere? I see [STRIKE] tag, https://www.youtube.com/watch?v= tag, [SPOILER] tag...
2) The preview button still duplicates the 3 bold questions. Is there a way to fix that? I remember when I joined about 5 months ago it had that issue...
I'm trying to make a post, but the latex is frustrating me. I typed in the following two lines.
[t*x]KE=\frac{1}{2}mv^2[/t*x]
[t*x]=\frac{1}{2}mv\cdot v[/t*x]
It just gives me a v and a dot, intead of v dot v, and it put both equations on one line. I attached an image of what showed...
Hi,
I know this isn't a general math problem but I didn't really know where else to post.
I'm trying to insert an image into a text I'm wrtting on LaTeX, the file is saved in .gif format in My Documents. I've read a little on the web about how I should insert the image into my text but I can't...
Hello,
does anyone know if there exist a free service that would allow one to base up a forum supporting latex for math discussions? just like physicsforums?
Thanks.
Hi. May I suggest the administrators consider improving how in-line latex appears in posts? For example consider:
This is my in-line post of \sqrt{x}=y and note how \sqrt{x} is not aligning perfectly with the text. The \sqrt{x} would look nicer if it were just slightly lower in the line...
I find it very difficult to learn the latex code system this website uses.
Why don't you people install a User-Friendly Latex equation editor on your website?
I found this one-
http://www.codecogs.com/latex/install.php"
It is very easy to use and less-time consuming!
All you have to do...
I am designing web software to interface to \LaTeX, Maxima and R.
What I wanted to get feedback about is:
1) Security issues which may arise from calling Maxima and R from the web. The interface is going to be a AJAX GUI and not a raw command-line input form so I will be able to filter...
Hello. I'm new to both PF and LaTeX. I searched the board on this, but could not see a thread that solves my problem.
I have several tex tags to use, but it looks like there can only be so many before the board gives off a database error. After combining the content of tex tags, the text got...
Hi folks, I am making some great progress in LaTeX, however this is something I am having trouble finding. I think that I am just unsure of what keywords to search. I have the following equation array:
\begin{eqnarray}
y(x) &=& \sum_0^{\infty}a_nx^{n+r} \label{eqn: frobenius 6}\\...
what is that latex font that screams "professional looking"?
I am using math-type + power point's beamer-template to create a presentation.
there are two kinds of fonts involved
For text:
i use cmtex10 (which i assume is computer modern for latex?)
For math
i use times new roman+italic...
Can some one provide me a latex template for presenting a seminar. I have downloaded few templates but they require infinite numbers of .sty, .def etc. i try to download all of them but they never finish, also if someone can provide me latex poster template also.
thanks.
hi, how do i insert Hypertext Links in Bibliographic References in my latex document. I am using bibtex and i want to be able to click on the reference in my text and it bring me to the reference. Similarly for figures, clicking on the figure reference in the text and it bring me to the figure...
Hello!
I just finished typing up my first Latex document for a proof I worked on. Now, I'm having trouble posting it on these forums. Here is the source code...
\begin{document}
$f : \mathbb{R} \Rightarrow \mathbb{R}$ is odd $\;\Longleftrightarrow \;f(-x) = -f(x) \;\forall x$.
Show that...
I just noticed that the LaTex images in some library entries are not displaying properly. Instead of displaying the equation, you see this text:
Click to see the LaTeX code for this image
The fix for this is easy, any Mentor or Science Advisor can edit the entry and then save it (without...
LaTeX question: What does putting "dvips" in the \documentclass do?
At my university, the master's thesis template in LaTeX begins with the following specification:
\documentclass[12pt,dvips]{report}
What in the world does putting the "dvips" do? What difference does it make?
Is there a sort of forum or message board for discussing LaTeX questions? I can't find one for the life of me. Is there somewhere on Physics Forums that I can post questions?
So I have a list like
\begin{enumerate}
\item asdfasdfasdf
\item asdfasdfasdf
\item \begin{align} equation here \end{align}
\end{enumerate}
I want to put an equation array to center and give some space around the equation, otherwise it looks all cluttered. I keep getting...
Hi,
sorry if this is the wrong place, but is there a good way to do bras and kets in latex. I usually just do \mid 0\rangle but this gives big gaps that doesn't look very professional
On my desktop running Windows XP, the LaTeX code appears normal but on my laptop running Windows 2000, the same thing appears in a small black window with disjointed white text that is unreadable. Is this a known problem with a known solution? Do I have to install something?
You can now use this page for unlimited previewing and testing
https://www.physicsforums.com/mathjax/preview.html
Works best in Chrome. In FF there is a permission problem and the font is a little crude.
I'll look to see how we can add this to the post editor.
Hey guys, I am trying to plot some graphs to use in LaTeX. In gnuplot, I run the command
set term epslatex
set output "graph.tex"
plot ...
However, my graph is blank. The axis and grid are there but text and curves are missing. If I set the terminal to aquaterm or X11, they look perfet...
I'm struggling with latex. I know HTML and can code in C, but for the life of me I need more examples.
Can someone point me to a reference that is less than a gazzillion pages long and longer than two pages of reference code. Just something to get me started on my way...
Homework Statement
f : X \rightarrow Y , g : Y \rightarrow Z and B \subset Z
Prove that
\left(g \circ f\right)^{-1}\left(B \right) = f^{-1} \left({g^{-1} \left(B\right)\right).What is wrong with this proof ?
The Attempt at a Solution
x_{0} \in \left(g \circ f\right)^{-1}\left(B\right)...
Does this forum have a source code 'sandbox' to practice test latex source code for publishing on Physics Forums?
I remember a sandbox a long time ago when latex was first introduced on Physics Forums, was it removed?
Homework Statement
I am trying to attach a MATLAB figure in Latex
Homework Equations
The Attempt at a Solution
I saved the graph as .eps instead of .fig, then i opened ghostscript, and saw that the figure was too wide to fit on the page...
how can i mend this?
thank you
Homework Statement
I know this is the wrong place. I tired to post in Science materials but it wouldn't let me.
Trying to do this in latex
t_n = ar^(n-1)
t_n=ar^{n-1} Getting weird results. I'm using Chrome on Vista. Its driving me nuts. I'm trying to post questions. Can someone sort me out?
I am trying to get subequations numbered nonsequentially. I have
\begin{subequations}
\begin{equation}
...
\end{equation}
\begin{equation}
...
\end{equation}
\end{subequations}
which gives me
(1a) ...
(1b) ...
Instead, I want (1c) instead of (1b). I have no clue whether...
I'd like to type a few tables similar to the one below into a LaTeX document.
\begin{tabular}{c|cc}
$\cdot$ & 1 & -1 \\
\hline
1 & 1 & -1 \\
-1 & -1 & 1 \\
\end{tabular}
It comes out much smaller than this in my LaTeX document. Is there an easy way to make it bigger? Also, it appears on...
Here is a little site with latex mod available.
http://www.codecogs.com/latex/eqneditor.php
Hover over them, and at the bottom of the page there is an option for latex...
Just copy that, and then back in the forum use
[/tex] --- insert whatever you get from that box ---[/tex] (rermove the...
Homework Statement
i am trying to insert an eps figure into latex.
The problem is: when i open the file as a dvi file, it works fine. but when i try to convert into a pdf file by clicking the dvi-to-pdf icon, i notice that a small part of the picture is missing (cut off on the side)...i...
Does anyone know of any LaTeX modules that makes the pdf output generated by pdflatex ADA/Section 508 compliant?
Same question regarding graphviz plug-ins?
I would like to divide the body of my document into two columns. In the left column go the section headings and in the right column go the section text.
My attempt is to make a new command:
\newdimen\sectionwidth
\newdimen\resumewidth
\sectionwidth=0.25 \textwidth
\resumewidth=0.75...
hi, there is a figure that i want to include in my latex document. The figure is in someones thesis and i want to have just that one figure in my latex document but I am not sure how to this. in power point i can just use the snap shop feature but how do i do it for latex where it requires a...
I'm a newbie, please bear with me...
I can't seem to be able to preview equations generated with the Latex buttons. The Latex code itself appears in the message composition box, but in the preview area all that appears is the ascii text, along with a lower-case greek "alpha" character in the...