{symbols} is about specific non-alphabetic symbols or math symbols, e.g., about looking-up, constructing, or using symbols. For questions about {fonts} or alphabetic {characters} use the respective tag instead.

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261
votes
11answers
32k views

How to look up a symbol or identify a math symbol or character?

I know what my symbol or character looks like, but I don't know what the command is or which math alphabet it came from. How do I go about finding this out?
28
votes
7answers
3k views

How to typeset Triforce?

What would be the best practice approach to typeset the Triforce symbol known from the Nintendo® Zelda™ series?
3
votes
2answers
111 views

How to create a larger symbol?

How can I insert a larger symbol of textreferencemark. Exactly how can I use a larger font for the the output of the command \textbf{\textreferencemark}
11
votes
4answers
558 views

How to write inclusion symbols diagonally?

I have two sequences of inclusions, say $A \subset B \subset C$ and $A \subset D \subset C$, and I want to combine these into one sequence. I don't know how to explain this very well, but the combined ...
3
votes
1answer
85 views

How can I type the Mathematica symbols “Distributed” and “Conditioned”

How can I type the Mathematica symbols “Distributed” and “Conditioned”?
3
votes
2answers
30 views

How to define a symbol which never goes at the beginning of the next line?

I have created a very simple symbol, and try it in the main text. What I want is this symbol never show at the beginning of a line, which means TeX(I use XeTeX) always treat it as a punctuation. How ...
1
vote
2answers
33 views

How to get a small letter version of \mathcal{O} [duplicate]

I am trying to produce a small letter version of \mathcal{O} which looks the same, just smaller - like "O" and "o". However \mathcal{o} produces a very different symbol. Has anyone an idea how to ...
9
votes
5answers
924 views

More aesthetic (perhaps shallower) superscript check symbol

The standard way to produce a superscript check mark in latex would be something like $\mathcal{E}^{\vee}$ (this is a notation often used for the dual of a locally free sheaf $\mathcal{E}$.) An ...
3
votes
2answers
428 views

How could I find a LaTeX hourglass?

I look for a nice LaTeX hourglass unicode (U+231B) ⌛. G**gle gives some nice things but nothing typeseting compatible.
6
votes
4answers
251 views

Identifying a single math symbol

I would like to reproduce the following symbol: The proof wiki does not seem to refer to that symbol, I did not find any font corresponding in the Math alphabets and the mathalfa package by ...
4
votes
2answers
71 views

like \rightleftarrows from amssymb, but with hook and twohead, respectively

I would like to have a symbol that looks like the symbol \rightleftarrows from amssymb, but I want the morphism to the right to be a twoheadrightarrow and the morphism to the left to be a ...
2
votes
0answers
72 views

What font is this smiling sun character in? [closed]

I'm hoping this question is not too far off topic for this group. I created a logo for my wife's business that incorporated a smiling sun character. I now only have it as an image file, but I would ...
9
votes
3answers
4k views

How to get text above and below double harpoon (reversible reaction) symbols in an equation

I'm working on the Chemwiki Dynamic Textbook Project at UC Davis, California and I've run into a problem. I need to formulate a symbol containing double harpoons (as in a reversible reaction, e.g. ...
15
votes
4answers
1k views

LaTeX “under construction”, “in work” or “work in progress” symbols

Are there "under construction", "in work" or "work in progress" symbols in one of the LaTeX symbol packages? Something like this (google search link). I have tried detexity, but could not find an ...
1
vote
0answers
41 views

Debug bibtex entries [closed]

Is there any way to debug bibtex entries (using biblatex) to know if the characteres are valid. I'm getting this error when printing bibliography: Overfull \hbox (5.59329pt too wide) in paragraph at ...
4
votes
2answers
153 views

How to print out the ^ sign? [duplicate]

How to write "y^2" in latex ? I need that hook in mathmode. The error says to put the expression within $...$.
6
votes
2answers
1k views

What symbol is this?

I need the command to display this symbol in LaTeX or, at least, its name. I guess it’s from some kind of a mathematical or informatics discipline. I saw it in article called “A comparison of ...
4
votes
1answer
73 views

Section symbol \S not rendering sans-serif in cmbright?

Is the section symbol \S supported in cmbright? If not, how can I get a sans-serif section symbol? The MWE gives me a serif version. \documentclass{article} \usepackage{cmbright} \begin{document} ...
61
votes
8answers
39k views

What's the best way to write e-mail addresses?

When trying to write an e-mail address, there are always problems with the @ sign. Solutions I've seen suggested are using some verbatim environment (more difficult in footnotes) and using a ...
3
votes
1answer
53 views

Is it possible to take “sum” from computer modern, “braces” from fourier?

The code is here. Also How can i add underbraces from fourier? \documentclass[11pt,a4paper]{article} \usepackage[english]{babel} \usepackage[utf8x]{inputenc} \usepackage{ucs} \usepackage{amsmath} ...
2
votes
1answer
79 views

LaTeX symbol for a particular chi-squared [duplicate]

In the book An Introduction to Error Analysis: The Study of Uncertainties in Physical Measurements by J. R.Taylor I find the following formula: In LaTeX, does it exist any symbol for shown above?
17
votes
3answers
323 views

How to write ≙ in latex

I want to use unicode character 2259 "estimates" in my document, but cannot find it in the symbols-a4 list or via detexify. It looks exactly like this: ≙ The closest I get is \triangleq: ≜, but it ...
0
votes
0answers
19 views

Eurosign in alignment is not showing up [duplicate]

The eurosign is not showing up as I wanted in the following alignment-context: \documentclass[fleqn]{scrartcl} \setkomafont{disposition}{\normalfont\bfseries} \makeatletter\let\TTTemp\cap\makeatother ...
1
vote
1answer
39 views

LaTeX - How to write a mathematics symbol in caption

I'm trying to put a mathematics symbols in the caption of my figure with this: \begin{figure}[!ht] \centering \includegraphics[scale=0.2]{vect_CM.png} \caption{Vecteur ...
0
votes
0answers
53 views

How to get a tensor product symbol [duplicate]

Im trying to insert a tensor product symbol (a circle with a cross through it) into my document. Anyone know how i might achieve this? Thanks
4
votes
3answers
282 views

How to write “ℰ”

could anyone please tell me how I can write "ℰ" in latex in both text and math enviroment? I have already tried $\mathscr{E}$ and $\mathcal{E}$, but none of those are satisfying. What I want to have ...
5
votes
1answer
146 views

Big shuffle symbol?

I am looking for a "big" version (sum-class symbol) of the ш symbol (shuffle product). I only found a binary version. Any ideas?
7
votes
2answers
225 views

Symbols for four and five vertical dots

I am very new to latex, but have spent hours trying without success to figure this out. I need symbols for both 4 and 5 vertically stacked dots. I know the commands for 1 dot (\cdot), and 3 dots ...
1
vote
2answers
53 views

Padding underscore with right space

I am using the times package and when using an underscore _ before an italicized upper case character it overlaps. Is it possible to pad the underscore with a small amount of space to the right, or ...
0
votes
0answers
46 views

! Undefined control sequence \backsim [duplicate]

My latex file does not accept the command \backsim. This is what I wrote in the file: $ \backsim 2.5 \mu$ What is wrong?
2
votes
1answer
76 views

Using Greek symbols in section title

How can I use Greek symbols as a part of section? For example, how may I create a section 'k-epsilon Turbulence Model'?
6
votes
2answers
115 views

Creating a custom character that automatically adjusts size in math mode? [duplicate]

After a lot of searching, I finally found the .pdf's for the elusive Griffiths script r character used in his ubiquitous undergraduate electrodynamics book. I made a simple package that allows me to ...
16
votes
4answers
422 views

Problems with custom symbols

I'm trying to include some custom symbols in LaTeX. So I have some vector graphic images that I export to PDF, such as: and I include them in LaTeX using ...
1
vote
1answer
90 views

How to insert the “X is a subset of Y, but is not equal to Y” symbol? [duplicate]

How can I insert the "X is a subset of Y, but is not equal to Y" symbol? I have tried using $\subsetneq$, as in $X \subsetneq Y$, but this yields the error message: Undefined control sequence. ...
3
votes
1answer
44 views

Space character: stretch after full stop

Is there a way to define certain instances of the space character to occupy a certain length in justfied text? The consistency of the size of the space after a full stop in a 12pt article (using ...
4
votes
0answers
92 views

Managing notation in long document

I'm writing a long document with a lot of math in it. While I write, I would like to be able to keep track of whether I've used a certain symbol before or not. I tried making a table, but I gave up at ...
2
votes
1answer
67 views

English Characters inside of arabic text arabtex package

i want to write a paragraph in my French book in arabic, I've used Arabtex package : \begin{arabtext} بلا بلا english word بلا لا \end{arabtext} The problem is that I need to show english words ...
11
votes
4answers
1k views

Where can I find on/off symbol?

Where do I find the on/off symbol of electronics?
2
votes
3answers
329 views

LyX: How to combine two math symbols? [duplicate]

I'm a new user of LyX. I'm using it to write math lectures. How can I make a new symbol from two existing ones? To be more precise, how can I create this: It's a subset with a circle in it ...
4
votes
2answers
107 views

Different style of permille sign

Hi all, I have found a publication using this permille sign with Times New Roman font. I have tried the textcomp \textperthousand and wasysym \permil commands but it does not yield this symbol. This ...
5
votes
2answers
189 views

A symbol for same order of magnitude in math mode [duplicate]

I want to write in math mode that something is compared to something else. It is, I want to say that both quantities have the same order of magnitude. What symbol should I use? ...
10
votes
3answers
413 views

How can I rotate \in by 90 degrees?

I am currently trying to show the domain of variables in a simple equation: \[\begin{matrix} x & \cdot & W_{1,2} & = & o\\ \in & & \in & & \in\\ ...
18
votes
3answers
2k views

How can I type “lambda-bar”?

I would like to be able to add the symbol "lambda-bar" (see below) into an equation. How can I do this?
2
votes
0answers
30 views

How to make a bar across lambda? [duplicate]

If I want to make a bar across h I just use \hbar. But what shall I do if I want to make a line across \lambda like on the picture? PS: I use the the book document class.
0
votes
0answers
28 views

Enter the symbol in math mode [duplicate]

Can anybody tell me how to enter $\bigcupdot\limits$? Thanks. I know how to enter \bigcupdot, but I don't know how to follow it by \limits.
2
votes
1answer
38 views

Long twoheadrightarrow

Is it possible to have a LONG twoheadrightarrow? There exists \longrightarrow and \longmapsto, but is there also a long version of the \twoheadrightarrow?
8
votes
2answers
471 views

Latex Math Symbol

Could anyone tell me what is the command for this math symbol in LaTeX Math mode?
0
votes
2answers
99 views

Currency symbol: Turkish Lira

I have two questions. Is there a single currency package containing the most common currency symbols, such as dollar, euro, frank, pound (sterling), yen, peso, etc. I couldn't find the currency ...
4
votes
2answers
212 views

LaTeX symbol for “divides precisely”

I sometimes need to write that a certain prime p^k precisely divides a number n, meaning that p^k | m but it is not the case that p^{k+1} | m. It is often written as: p^k || m, where the symbol in the ...
4
votes
2answers
104 views

changing font style/size for proof, adding a square after example

Is is possible to change font size/(or style) for a proof? I was also thinking to add a small hollow square at the end of every example to separate the text a little. Something similar that works like ...