{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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0
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2answers
5k views

How do I make math symbols bigger?

I'm using Scrivener to convert multimarkdown to LaTeX and then using TeXshop to typeset my document.This work flow works great for me except for the fact that I'd like to be able to make certain math ...
3
votes
2answers
1k views

How to set the size of a single symbol defined via \DeclareMathSymbol?

I am using the following definition for a symbol I call \nstn: \DeclareSymbolFont{largesym}{OML}{cmm}{m}{it} \DeclareMathSymbol{\nstn}{0}{largesym}{"22} How can I set the size of this single symbol ...
41
votes
2answers
83k 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?
4
votes
1answer
4k views

Alternate Greek symbols

I remember there being a way to display some Greek letters in a slightly different style (like how people often write Greek letters a bit differently than they're printed). Can anybody remind me of ...
11
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4answers
3k views

Why duplicate symbol commands

I am wondering why so many duplicates of a symbol exist in latex. Let me provide some: For prime I know two types: 1. $f'$ 2. $f^\prime$ in Wiki Prime Symbol it is explained why \prime is introduced: ...
10
votes
3answers
30k views

How to draw a vertical line of desired length in equations.

I am writing a big formula where a vertical line is needed. Instead of $\vline$ or $|$, does anyone know a way to draw this vertical line of desired length? The formula is something like $$ E\Bigg[ ...
47
votes
3answers
83k views

How to get “LaTeX” symbol in document

I want to get that fancy LaTeX symbol to put in one of my documents but I cannot find it anywhere. All searching for things like latex symbol have not resulted in the symbol but other symbols.
12
votes
2answers
5k views

How does one TeX a blank?

By blank, I'm looking to TeX something like this: $\{\emptyset\}$ _ $\{\emptyset,\{\emptyset\}\}$, but I want the _ to look more like a longer blank as you'd see in a fill-in-the-blank type of ...
15
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3answers
55k views

How to make math symbols bigger?

Is there a way to make math symbols bigger? Reason: I've used \sfrac{q}{m}, and those symbols appear far to small, so I would like to make them a bit bigger. edit: I just thought that \sfrac{q}{m} ...
200
votes
4answers
12k views

What is the use of percent signs (%) at the end of lines?

I see that the code in many packages and examples contains percent signs % at the end of (many) lines. What are they used for? Do they affect the parsing of those lines?
9
votes
2answers
4k 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
3answers
18k views

Arrow with text above

I am drawing an arrow using the following command: $ \xleftarrow{\mbox{\tiny{BCast}}} $‎. I have tested the command in two different environments: TeXShop (MacOS, uses TeX Live) outputs an arrow ...
10
votes
3answers
19k views

vertically centered dot

I want to have a function name (like g(.)) and I do this in this ways: $g \left( . \right)$ $g(.)$ But in either way, the dot "." seems a little lower than it is better to be. I am wondering if ...
11
votes
2answers
638 views

Relation symbol used by Conway in On Numbers and Games

I'm trying to find a nice way to typeset a relation used in combinatorial game theory. It's supposed to be a combination of < and || symbols (with the first vertical line connected to the <), ...
64
votes
5answers
68k views

How to escape the & (ampersand) character in BibTeX?

I would like to put a & character in a BibTeX publisher tag. Thus far I have tried: \& {&} {\&} "&" with the full value enclosed in curly braces and double quotes. No matter ...
5
votes
1answer
2k views

Change arrow head of \xrightarrow[]{}

I am using \xrightarrow{} in many places in my document. I want to change the tip to look like the one that gets produced by -latex. I am trying to get a similar tip for the \xrightarrow{} macro.
119
votes
12answers
67k views

Good way to make \textcircled numbers?

I'm trying to make some good-looking numbers in a circle, using the simple command: \textcircled{1} However, the circle is misaligned vertically with the number, and look a bit sloppy: Any ...
37
votes
1answer
57k views

Symbol for Gaussian distribution

What is the symbol for the normal density function in LaTeX?
10
votes
1answer
4k 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 ...
30
votes
2answers
40k views

How do I make the 'such that' symbol from Set Theory?

I am looking for the 'such that' symbol in set theory. I don't know what it's called so I'm not sure how to look for it. For the moment, I am just using this '|'. What is the appropriate symbol?
44
votes
5answers
19k views

Typeset an = with an ! above

I've seen an equals sign with a small exclamation mark on top being used to say "equals because of data that was given in the problem", for example for a boundary condition or initial value in a ...
5
votes
1answer
3k views

Different switch symbols in circuitikz?

I'm wondering if there are other commands associated with the switch symbol so that one doesn't have to specify if the switch is open or closed. I would like the switch symbol with two connectors and ...
15
votes
2answers
539 views

Depth of the \times symbol

I just noticed an annoying discrepancy involving the \times symbol's depth. Read the below code and then try to guess what it should look like: \documentclass{article} \begin{document} \fbox{$A$} \...
7
votes
4answers
9k 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 \...
4
votes
2answers
749 views

\pounds in verdana is not working

This is the document: \documentclass{article} \renewcommand\familydefault{\sfdefault} \renewcommand\sfdefault{phv} \normalfont \begin{document} The jacket costs \pounds{}50. \end{document} I see a ...
27
votes
2answers
3k views

How to get a \mid binary relation that grows

This question relates to one about getting a vertical bar longer than \mid. How to get a vertical bar which is longer than \mid ? However while the given \middle| solution works for me, it no longer ...
14
votes
1answer
7k 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 ...
109
votes
7answers
140k views

Command for argmin or argmax?

How can you get the argmin or argmax in Latex? Two solutions I found are: \underset{x}{\operatorname{argmax}} \DeclareMathOperator*{\argmin}{arg\,min} Any other ideas? [1] http://www.breakthru....
24
votes
1answer
31k views

Mapsto vs. rightarrow

This is perhaps half a math question and half a typesetting one. In what circumstances do I use \mapsto and when \rightarrow? I feel like the standard seems to be: when you're specifying the operator ...
19
votes
1answer
25k views

Text over/under implies arrow?

I'm currently trying to write over/under an implies arrow in LaTeX (in math mode): \implies_{text} This places the text lower, but next to the arrow, not below it. How can I get it below the arrow?...
13
votes
5answers
4k 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 $$ {\Large{*}}_{...
10
votes
3answers
2k views

How to use \bigtimes without pain

I've been fighting with mathabx lately and it's not really worth my time, so I tried switching to MnSymbol which also modifies some of my regular symbols. Is the best solution just to make my own ...
18
votes
1answer
9k views

Latex symbol for personal website url

I have a fancyhdr footer with my personal data and I would like to add some cute symbol inline with my website url. I've already included the marvosym package and used: \Letter symbol before my ...
16
votes
2answers
3k 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
3answers
2k views

What is the symbol “between” (≬) used for?

The amssymb package has a binary relation symbol named \between, which I have never come across. What is it used for? I found out from a compiler error when I tried to define a symbol named that way ...
37
votes
7answers
41k views

Typesetting of negative versus minus?

I've occasionally seen a negative (when a number is simply negative, not a subtraction), typeset as negative sign that's slightly skinnier and above the centre line of text. Is this proper notation ...
17
votes
5answers
2k views

\Longrightarrow doesn't look good in 12pt

I'm using the standard CM fonts in 12pt (and amsmath if this is relevant). My problem is that \Longrightarrow gives something like this output, which I find a bit annoying. I know that it's a ...
6
votes
3answers
3k views

Problem with \leq displaying as \leqslant

I assume it has something to do with my custom macro package, but I'm not really sure. I've just noticed that all of my \leq display as \leqslant the only thing that I could think would effect it is ...
15
votes
7answers
18k views

A symbol for the quotient of two objects

One needs often a symbol to denote the quotient of two (algebraic) objects. (e.g. quotient by a subgroup, subring, submodule etc.). In simple cases people use A/B. But when both A,B are complicated to ...
10
votes
5answers
1k 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 ...
15
votes
2answers
8k views

The symbol for a map which is an isomorphism?

Suppose I have a map A → B which is an isomorphism. I'd like to represent this as something that looks like \rightarrow with \simunder it. I could try \underset{}_{}, but is there already a ready made ...
38
votes
5answers
20k views

What's a good way to write “x does not divide y”?

The way I currently do it is $x \not | y$, which looks awful. There's got to be something better available.
5
votes
2answers
1k views

Tone marks above Chinese characters in latex

My aim is to put tone marks above Chinese characters in latex. I have tried \v{好}, but this puts the carron accent (3rd tone) in the space left of the character rather than above it. I have also ...
8
votes
2answers
6k views

\chardef and underscore

Could you explain to me why a\_b {\ttfamily a\_b} \\ \chardef\_=`\_ a\_b {\ttfamily a\_b} produces ? I would like to have the short underscore in the normal text and the long one in fixed-...
103
votes
8answers
17k views

Prettiest way to typeset “C++” (cplusplus)?

Writing "C++" in plain text results in an ugly setting, as the '+' signs are too big and too spaced: I've seen around the web several marcos for typesetting the "C++" symbol, ranging from mild ...
69
votes
4answers
130k views

“inputenc Error: Unicode char \u8” error while trying to write a degree symbol (invisible character)

No matter how I try to do it I always get the following error : ! Package inputenc Error: Unicode char \u8:­ not set up for use with LaTeX. I have tried using ­­­$^{\circ}$, \deg, \textdegree, ...
130
votes
9answers
51k views

How to typeset $:=$ correctly?

I like to use $:=$ for "is defined to be equal to", but this is never typeset with the symmetry one would like, as the colon is always too low relatively to the equals sign. Is there any way of ...
12
votes
3answers
4k views

How to typeset Haskell ++ operator and friends?

Usually, the list concatenation operator in Haskell is printed as overlapping double plus signs in books. (In ASCII it is just ++) How can I typeset this sign in Haskell (in and perhaps outside of ...
3
votes
3answers
4k 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 ...
7
votes
2answers
2k views

A big thick question mark

I'm using \ding{52} and \ding{56} from the pifont package to get nice satisfying thick ticks and crosses. I'd like a question mark ? that fits with these. \textbf{?} is too small, and not thick enough....