{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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12
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5answers
2k views

Define strange operators

I' looking for a symbol rendering the connected sum of $n$ topological spaces (or other quite strange topological operations) in a "product-like" manner... What For example in writing $$ ...
5
votes
2answers
808 views

Create my own mapping for XeTeX fonts

I'm trying to create mapping files, to make use of Cambria Math italic calligraphic and double stroke letters in Plain XeTeX. However, I'm unable to do so. This is what I tried to create for the ...
4
votes
1answer
217 views

Typing Following notation in Latex [duplicate]

I need to generate following notation in LaTeX. It's used in differential geometry to denote vector fields. I can't find documentation and detexify is not helpful either.
3
votes
2answers
3k views

How can I put musical clefs in the middle of text?

I'm setting a document that includes some music; I'm using lilypond-book for the musical examples. However, there are some points where the author has inserted a musical symbol in the text; I'm using ...
3
votes
2answers
6k views

Is there a standard symbol for conditional independence?

I have found this symbol defined as: \def\ci{\perp\!\!\!\perp} on the wikipedia page for Conditional Independence. There's this from the Comprehensive LaTex Symbol List page 106: Donald ...
1
vote
1answer
1k views

Help with math symbols in BibTeX

I am writing a PhD thesis using LaTeX. Every thing is going fine, but I have problem with the output of the mathematical symbols in the references lists. I copy one example from the Pdf file to make ...
1
vote
1answer
2k views

which package for \oiint symbol

I have some code which uses the \oiint symbol. However there are many packages that provide this command. Most of for special fonts. I am using lmodern however and want a package that provides the ...
35
votes
1answer
27k views

X mark to match checkmark

I am looking to have an X mark that compliments the \checkmark symbol in the amsmath package. I've had a look at some in symbols-a4.pdf but can't seem to find the matching one! What symbol works well? ...
24
votes
5answers
4k views

Is there a wider equal sign?

I have defined the equal by definition sign: with this code: \newcommand{\eqdef}{\overset{def}{=}}. However, "def" extends over the edges of the equal sign. Is there a wider equal sign to use?
19
votes
10answers
2k views

What useful web services are out there?

Looking at this question, I wonder what good and useful web services are out there. For example the LaTeX symbol classifier looks interesting. You can draw a symbol with your mouse and get back the ...
10
votes
4answers
4k views

Denoting the end of example/remark

What is the etiquette to denote the end of an example or remark? For proofs, it's the QED symbol (white box). I know it's not necessary for everyone, but I would like to use it to break up the text a ...
14
votes
1answer
6k views

How to typeset block matrices?

I need to typeset a block matrix that is made of a 2X2 structure of blocks such that the (1,1) block and the (2,2) blocks are zero and the (1,2) and the (2,1) blocks are non-zero (and happen to have a ...
25
votes
2answers
17k views

\bm package versus \boldsymbol

I'm typing a bold vector small x with a tilde sign above it. Now when I want to write its derivative, I'm putting a dot on top of everything. This is giving me problems and I found one solution: ...
16
votes
4answers
580 views

Calculate prices

I want to calculate prices in a LaTex file. This means I want to add two numbers with exactly 2 decimal places and I want to multiply these values by an integer. An other thing is the output format. ...
9
votes
2answers
10k views

3 dots in matrix

I was wondering if anyone knew how to draw 3 dots in a matrix that go in a diagonal way usually to represent that element flow similarily in the slots. I know there's one that goes in the bottom right ...
24
votes
4answers
2k views

How to get a good “divisible by” symbol?

In addition to the "divides" relation, denoted b | a, there is also a "divisible by" relation expressing the converse (a is divisible by b), often designated with three vertical dots. Up until now, ...
16
votes
1answer
514 views

Obfuscation of @ and . in e-mail addresses

I manage style files for an academic journal. A typical article will contain authors' email addresses, which we attempt to obfuscate in order to give some measure of protection against e-mail ...
5
votes
2answers
2k views

How to typeset mathematical symbols (with index, etc) always the same way and easily?

When I started to write my thesis I decided not to make things too complicated and to just type mathematical symbols each time they appear, like $V_{s1}$ or ${CV_{D,\, \mathrm{Si}}^{*}}$ Now, finally ...
22
votes
1answer
5k views

\varepsilon vs. \epsilon

I cannot remember anyone writing the letter epsilon in any other way than \varepsilon in any math class; but in LaTeX \epsilon and \varepsilon are different symbols. Do anyone of you know why there ...
19
votes
3answers
1k views

Regularized Product Symbol

How so I make a regularized product symbol like in Deninger's papers. It looks like a II, only large like $\prod$ only with a bottom on it too, as in the following paper abstract:
19
votes
2answers
26k views

Is there a circle symbol?

Is there a circle symbol for the composition of two functions? Or do I have to resort to using other ways to represent that?
18
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3answers
1k views

How do you swap the commands for two symbols?

I find that I much prefer \varphi to \phi and generally would rather use the \varphi than the \phi. But it's three more characters to type \varphi instead of \phi, which is most troublesome. So I ...
18
votes
4answers
14k views

Creating Boxed Check Mark

Is there a way to create a box with a check mark in the center of it and the check mark coming out of the box? For example: $\boxdot$ or $\boxtimes$, but instead have a check mark placed at the ...
15
votes
3answers
892 views

Writing { and } to a file with LaTeX

How can the special characters { and } be written literally to an external file in LaTeX, without being balanced? Obviously the following does not work: \immediate\write\my@outfile{{} ...
13
votes
2answers
282 views

Smaller membership symbol

To mean that x is an element of X, we can write x \in X. However, in the standard packages, the membership symbol that results is too big; it draws too much attention to itself. This is especially ...
10
votes
5answers
2k views

How do I stack more than two arrows in math mode?

The command \rightrightarrows (from amssymb) draws two arrows, one on top of another. How do I get three arrows arranged in a similar fashion? An example of this (and other fancy arrow stackings) ...
1
vote
1answer
119 views

How to create dashed right arrow over symbol?

Recently I asked this question: Dashed left arrow over symbol I needed to know how to put an dashed left arrow over a symbol. I received two answers, one of them used Tikz for this, other use pure ...
26
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4answers
19k views

How to insert pipe symbol in (La)TeX?

How to insert pipe symbol | in TeX (LaTeX)? I have tried this sample with pdflatex tmp.tex \documentclass{extarticle} \begin{document} \textpipe \end{document} And it give undefined control ...
15
votes
2answers
670 views

Fancy cross-referencing

As an extended idea of Using section sign (§) for cross-references to sections, how can we use See ⚙5.2 and ☰5.3 in ☞123. instead of: See figure 5.2 and table 5.3 in page 123. ...
14
votes
3answers
655 views

Looking for symbol: Shield

I am looking for a "Shield" symbol: I already perused the Comprehensive Latex Symbol List, with the closest fit being \dsheraldical from the dictsym package, which is however non-satisfactory ...
13
votes
2answers
883 views

Allow underscore in PGFPlots tick labels read from table

I'm trying to use the text data from a table column as the tick labels in a plot. The text data contains underscores, which makes LaTeX throw a Missing $ inserted error. I'd usually get around this by ...
11
votes
2answers
12k views

Cursive lowercase ell

What is the easiest way to make a cursive lowercase ell in latex math mode?
10
votes
2answers
267 views

Are itemize and EBGaramond compatible?

This MWE works: \documentclass[english]{article} \usepackage[T1]{fontenc} \usepackage[utf8]{luainputenc} \makeatletter %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands. ...
9
votes
4answers
1k views

Substituting character $l$ with $\ell$ throughout math mode

How do I overwrite the default $l$ character so that it is substituted by $\ell$ throughout math mode? (More generally, is there an easy way to make such symbol substitutions?)
8
votes
3answers
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eurosym seems to not be working

I just tried the eurosym package for the first time, and when I try $\euro$, I simply get e. I have tried looking on line, for instance http://www.theiling.de/eurosym.html and on CTAN. Seems to ...
7
votes
2answers
6k views

Solid black box in the proof environment

I am using \documentclass[12pt]{article} \usepackage{amsmath} \usepackage{amssymb} \usepackage{amsthm} \begin{document} \begin{proof} A = B \end{proof} \end{document} and an empty square box ...
6
votes
2answers
397 views

Extracting characters from the new libertine (with pdflatex)

The issue: I need to access e.g. libertine's delta glyph in pdflatex. This question notes that the \libertineGlyph command is no longer provided by the latest version of the libertine package. It ...
20
votes
4answers
3k views

Symbols for Outer Joins

I'm looking for a way to typeset the symbols for outer joins, that is ⟕ U+27D5 onward. There seems to be nothing in symbols-a4. Note that I'm not looking for ⋊ U+22C9 as this represents a semijoin. ...
14
votes
4answers
1k views

Underbrace under sqrt content

I am trying to use underbrace to clarify the arguments to a sqrt. However this causes the square root sign to reach all the way down to the bottom of the text under the brace(s), which is not what I ...
14
votes
2answers
2k views

Extendible equals sign

I have a command that has been floating around in my standard preamble for a while: \newcommand{\xeq}[1]{\stackrel{\;#1}{\cleaders\hbox{=\!}\hfill}\:} It is meant to mimic the AMS-LaTeX extendible ...
12
votes
1answer
11k views

What is the command for not modularly congruent?

The symbol for modularly congruent is ≡, which can be produced with \equiv. For instance, 18 ≡ 0 (mod 9) What is the symbol for not modularly congruent, and how do I represent it in TeX? I have ...
12
votes
1answer
3k views

Extending arrows with overset text

I'd like to extend an arrow to allow better readability of characters which are overset using \overset{}{}. Right now I have \overset{k_1}{\rightleftharpoons} which produces: and this leaves ...
11
votes
2answers
2k views

Error with percent sign in bib entry field when using biblatex/biber

I'm trying to use biblatex (v1.5a) with biber (v0.9.3) instead of BibTeX but I am having a problem with bib entries, where the abstract contains a percent sign. In that case, in the bbl file the ...
9
votes
3answers
9k views

filled \diamondsuit and \heartsuit

\clubsuit, \diamondsuit and the like produce the familiar card suit symbols; however, the diamond and heart suits are empty (only outlined), while clubs and spades are filled. Is there a way to obtain ...
8
votes
1answer
3k views

Symbol for “corresponds to” (equals sign with hat)

Recently in some LaTeX documentation I noticed that there is a special LaTeX command for the symbol meaning "corresponds to", which is similar to an equal sign with a hat on top. \hat{=} or ...
8
votes
1answer
2k views

Minimum length for \xrightarrow

I want to place text over arrows. The obvious choice is to use the amsmath command \xrightarrow{#1} However, sometimes the text above may be a single digit: %Example 1 \xrightarrow{1} other times ...
8
votes
2answers
846 views

What font package do I use to get the vertical Russan/German style integral signs?

What font package do I use to get the vertical Russan/German style integral signs? (subject says all)
7
votes
2answers
381 views

Log-like operator with math inside (e.g. p-lim)

I am looking to make a log-like operator that looks the same as $p \text{-lim}$. The best way so far I found to do this is \DeclareMathOperator*{\plim}{\text{$p$-lim}} Question: Is this the ...
5
votes
1answer
830 views

What is a good method for producing a unary plus/minus sign that always works?

Say I have a macro that does something in math mode (say, change the mathalphabet). This macro, \somecommand, takes one argument. I might want use is like this, feeding an empty argument into it: ...
3
votes
2answers
147 views

Which encoding supports this symbol ƒ?

I have this encoding in my file: \usepackage[utf8]{inputenc} %unicode support but I still get the error Package inputenc Error: Unicode char \u8... not set up for use with ... How can you make ...