{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.

learn more… | top users | synonyms (3)

10
votes
3answers
501 views

The line produced by \not looks bad on wider symbols

When using \not together with wider symbols such as \Leftrightarrow the diagonal line produced by \not is placed too far to the left. How can the line be properly aligned? For example the following ...
10
votes
5answers
908 views

A symbol for the field of formal Laurent series

In my area of math one of the objects that pops up quite often is the field of all formal Laurent series. Now the trouble is that the notation for this field is $\mathbf{C} (( t ))$. Now the two ...
9
votes
1answer
3k views

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

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 ...
9
votes
2answers
3k views

AC source symbol in TikZ circuits.ee.IEC library

I can draw an AC source manually: \begin{tikzpicture} \draw (0,0) sin (1,1) cos (2,0) sin (3,-1) cos (4,0); \draw (2,0) circle (2.5); \end{tikzpicture} How do I declare an ACsource symbol so ...
8
votes
1answer
109 views

How to use a custom, scalable, symbol in LaTeX

I want to use a custom symbol in my document that is treated like any other letter or math symbol by LaTeX. I do not want to superimpose existing symbols in order to create a new one but rather create ...
8
votes
5answers
883 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 ...
8
votes
3answers
2k views

Rotation in \ddots

I want to write a math equation that needs power of dots. I tried these code {2^{2^{2^{\ddots^{2}}}}} But the dots needs to be rotated
7
votes
3answers
810 views

The modulo two sum sign in LaTeX

I would like to know how I can obtain the 'modulo two sum' sign (unicode 2A0A i.e., the letter sigma with a circle in its middle). I know I can obtain it by using the unicode-math package. But does ...
6
votes
7answers
3k views

frown and mathop/stackrel/overset

I need something like \stackrel{\frown}{MM'} to express the fact that MM' is some path. But I am not really satisfied by the look of the result. The \frown is too high. Would you please have a ...
5
votes
4answers
4k views

Changing “-” to \textendash

I have a large LaTeX document, where hyphens are typeset with a single dash ("-") throughout. In my font, this shows up as a bold and vertically slightly off-center blob, but I'd like it to look like ...
2
votes
1answer
567 views

Is a cupdot symbol available in amsmath? [duplicate]

I'm looking for a command in amsmath that makes something like \cupdot in MnSymbol (I hope spell it right...). Look at the picture below: i.e. a command that puts a dot instead of the "+". One ...
2
votes
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 ...
12
votes
5answers
2k views

Ellipsis with a period/fullstop

While quoting how ellipsis should be used if few sentences are omitted in between. (ommissions are not clauses or words or phrases, but sentences). For example if there is a passage like: This is a ...
8
votes
2answers
755 views

How can I typeset an extra-long \textbar?

This is what I get with \textbar: This is what I want it to look like:
6
votes
2answers
852 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 ...
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 ...
1
vote
1answer
2k 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 ...
42
votes
1answer
31k 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? ...
25
votes
5answers
5k 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?
16
votes
3answers
2k views

How do I change the font of a letter?

This is a partial re-asking of my question Can I change the font and colour of a letter permanently?. The answers there focussed on the colour aspect of what I wanted. I also want to be able to ...
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 ...
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 ...
9
votes
2answers
13k 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 ...
16
votes
4answers
414 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 ...
25
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, ...
20
votes
2answers
30k 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?
5
votes
2answers
3k 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 ...
30
votes
4answers
21k 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 ...
25
votes
1answer
6k 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
4answers
1k views

Underscore in textmode vs mathmode

I use _ character often in text mode, so I changed category of underscore: \catcode\_=12, but that applies also to mathmode and now I'm unable to make subscripts with underscore in mathmode. Is 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
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
16k 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
1k 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
298 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
139 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 ...
15
votes
2answers
741 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
4answers
2k views

Spacing between triple vertical lines

I would like to create a norm-like operator with 3 verticals bars instead of two. It has to look like $|||\cdot|||$. I would like to know how to decrease the spacing between the vertical bars such ...
14
votes
3answers
677 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
945 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
13k views

Cursive lowercase ell

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

Are itemize and EBGaramond compatible?

This MWE works: \documentclass[english]{article} \usepackage[T1]{fontenc} \usepackage[utf8]{luainputenc} \makeatletter %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands. ...
10
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
2answers
8k 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
416 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 ...
3
votes
1answer
293 views

Free, non-upright, blackboard, Type1 font

Is there a free package to get non-upright (i.e. italic or slanted) blackboard symbols in a Type1 font? It's easy to get three of the four properties (i.e. blackboard italic font, ...
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
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 ...