{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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82
votes
4answers
54k views

\mid, | (vertical bar), \vert, \lvert, \rvert, \divides

What's the difference between the different vertical bars? $S = \{\, x \mid x \not= 17 \,\}$ $a \vert b$ implies $a \leq b$ when $b \ne 0$ $a|b$ implies $a \leq b$ when $b \ne 0$ $\lvert x \rvert$ is ...
5
votes
2answers
157 views

How to make expectation symbol and max symbol line up

Suppose you prefer the max symbol to be centered (height-wise) compared to a capitol letter that is taller. How would you do that. For example, below \documentclass[14pt]{beamer} \usetheme{Madrid} ...
0
votes
0answers
36 views

How can I enter the symbol in picture, which is like “O”, in Latex? The symbol means “proportional to” in mathematics [duplicate]

How can I enter the symbol in picture, which is like “O”, in Latex? The symbol means "proportional to" in mathematics. Thanks in advance.
4
votes
1answer
52 views

Vertical bar in a math mode inside tabular

I cannot get the | line to appear in a fraction in a tabular. Could someone please tell me what I am doing wrong?? \documentclass{article} \usepackage{amssymb, amsmath} \begin{document} ...
19
votes
4answers
2k views

Generating a table of glyphs with XeTeX

I am trying to get XeTeX to generate a table of all the possible glyphs of a given font, but can not figure out how to make XeTeX know how many glyphs the font has, so I have to specify an exact ...
1
vote
1answer
53 views

How should I use % sign that it can be printed out correctly? [duplicate]

when I try to write 90% I do 90 $%$ , but none works and anything after the % doesn't print in the output, any solution ?
0
votes
1answer
77 views

Triangle inequality symbol

Does anybody know what symbol to put above an inequality symbol < to indicate that the triangle inequality has been applied? I would like a symbol like this (which is not in The Comprehensive ...
13
votes
2answers
483 views

How to write these symbols (double vee, wedge and bracket)

I want to know how could I do these three things (in red): For the last one, I'm curious about the brackets. Probably they are not too dificult to "write" in this languege but I've no clue. I hope ...
6
votes
2answers
4k views

overleftrightarrow

I'm not completely happy with the construction \overset\leftrightarrow{#1}. There is slightly too much spacing and the arrow heads are too big - making the line spacing a bit too much. Does anyone ...
13
votes
1answer
240 views

How to show keys (ctrl, alt, …, etc.) as fancy as StackOverflow? [duplicate]

In StackOverflow, I can show keys like this: ctrl + alt. How to do the same things in LaTeX?
4
votes
2answers
55 views

u with bar in bibliography (biblatex+biber)

I have a bibliography which contains the character \={u} in an author's name. This should be the letter u with a bar on top. When executing pdflatex -> biber -> pdflatex, I get the error message: ...
5
votes
3answers
622 views

How do I write logical iff symbol?

I'm currently hearing a lecture about formal systems (a computer science lecture). The lecturer makes a symbol that is written like overlying < and >: Every time when he draws it, he says ...
4
votes
2answers
221 views

Symbol inbetween “#” and “ff”

I wondered how to create a symbol that looks like "#" (for connected sum) and "ff" for "fiber". The size and angles should be like the "#", but the vertical bars should look like two f`s. Another way ...
1
vote
2answers
3k views

How to put therefore and implies symbols

\documentclass{article} \usepackage{graphicx} \begin{document} \vspace{\baselineskip}\noindent \textbf{THEOREM :} If an operator has both Left Identity and Right Identity then it is \emph{UNIQUE}. ...
3
votes
1answer
167 views

Making a thicker \cdot for dot product (that is thinner than \bullet)

I'm trying to replicate the dot that my professor uses in his notes for the dot product between vectors but I am having a hard time doing so. This is what it looks like: I have tried a couple of ...
21
votes
1answer
472 views

Shorthand for \leftarrow?

Just out of curiosity: As the command \rightarrow has the shorthand \to, is there a corresponding shorthand for \leftarrow?
7
votes
2answers
96 views

boldsymbol badly modifies spacing

In the example below, it is my feeling that \boldsymbol badly increases the horizontal spacing with the index: \documentclass[fleqn,11pt]{book} \usepackage{amsmath} \begin{document} ...
6
votes
3answers
734 views

Special Symbol “::=”

As the title says, does LaTeX have this special symbol: ::= I tried to look at some cheat-sheets and http://detexify.kirelabs.org/classify.html but could not find it.
2
votes
1answer
150 views

What's the best way to make a heart & butt in LaTex?

I want to use the symbol for heart (e.g.♥) and butt (i.e. the flipped version) in LaTex. I have the heart but I need the butt. Two ideas occurred to me: Find a butt symbol If none exists, flip ...
9
votes
5answers
1k views

Is there a \ding symbol for a house?

Is there a \ding symbol for a house? I need it for my CV, but can't find it. Thanks
3
votes
2answers
63 views

How to get the covering relation symbol?

I want    to denote the covering relation. I can't find this symbol in my standard sources for this sort of thing. Detextify has also failed in this. How can I get this relational symbol?
0
votes
1answer
90 views

What font or symbol is this in Latex? [duplicate]

Can anybody recognize the font or symbol for this . It is used as font for alphabetic letter S, in my text. I did check almost all fonts and symbols but couldn't succeed in finding a good match. I ...
22
votes
4answers
5k views

variable-sized “such that” pipe

I am looking for a pipe symbol that can be made to vary in height automatically. One of the common ways of writing "such that" in mathematics is with the pipe symbol (|). The pipe can be represented ...
3
votes
3answers
4k views

Using \Letter symbol in ifsym package

Here is what I did: I downloaded ifsym package from MiKTeX Package Manager. (MPM) I added the line to my .tex file: \usepackage{ifsym} I tried typing \Letter in the document. but it doesn't ...
12
votes
4answers
449 views

\wedge and \vee juxtaposed in one symbol

How can I combine the symbols \wedge and \vee into one symbol, like \wedge\vee and \vee\wedge? I am thinking of something like \gtrless but rotated by 90 degrees. The purpose is similar to the \pm ...
5
votes
2answers
115 views

\scriptstyle placement fine tuning

I need a functional composition operator. I find \circ too big for it, so I've declared a math operator (within the amsart documentclass) as \scriptstyle\circ instead; the size is exactly what I would ...
6
votes
2answers
128 views

AT sign in the nomenclature

I'm using the nomencl package. I need to make an entry that contains the at symbol but entries containing @ don't appear in the nomenclature. \usepackage{nomencl} ... ...
5
votes
1answer
80 views

Missing colon in mathtime

I have got MathTime Fonts installed and can get the math letters correct, but several signs like :, [ and ] are missing. They appear to be declared in mathtime.sty file, but do not appear in the ...
4
votes
1answer
52 views

\textasteriskcentered invisible with [garamond]{mathdesign}

Please try this MWE: \documentclass{article} \usepackage[garamond]{mathdesign} \usepackage{roboto} % or another sans serif font, e.g. the cabin package \usepackage{blindtext} \begin{document} Centred ...
11
votes
2answers
694 views

How to change operator symbols in truth table

I need to type truth tables for my computer architecture classes. Until now I was using a manually typed tabular but today I've found this answer from Scott H. which provides a command called ...
4
votes
0answers
31 views

how to support the special latex characters in Matlab plot title [duplicate]

I'm trying to type \digamma. In latex, this character is supported in \usepackage{amssymb}. In Matlab, I can set the interpreter to be Latex as follows Figure1=figure(1) ...
0
votes
1answer
63 views

Titlingpage thanks footnote symbols show last symbol only (memoir class) [duplicate]

I have a question regaring the titlingpage environment of the memoir class. I use \thanks multiple times on the title page, but the footnote symbol marks are all the same (the last symbol, which in my ...
3
votes
1answer
281 views

omicron not working in LaTeX

I find out that \omicron is not working in LaTeX, at least for the latest MacTeX I installed. MWE: \documentclass{article} \begin{document} \( \omicron \) \end{document} From List of Mathematical ...
5
votes
3answers
1k views

Unusual custom math accent

I want to introduce a new type of math accent that is basically an overbar, but also has small (scriptscriptsize?) text set to the right of the bar. Basically something like $\bar{A}^{\mathrm{co}}$ ...
1
vote
1answer
139 views

Undefined control sequence for beta symbol list

I am new to Latex, please help me! I would like to give a beta symbol with a sequence of values as below. \boldsymbol{\beta} = (\beta_1,\beta_2,\dotsc,\beta_n) output looks promising. β = (β1, ...
5
votes
2answers
241 views

Simple partial derivative problem

I have a simple problem with partial derivative symbol, it doesn't work if I try any of these commands: \partial \pdiff \pder I use sharelatex, and in other projects I could use the \partial symbol. ...
5
votes
2answers
97 views

latex thorn sans serif symbol in math mode

I am studying theory at university, and the lecturer uses this symbol for elementary probability: I want to use it in math mode, but the best suggestions I got from ...
6
votes
2answers
159 views

Joint-Life First-Survivor Insurance Symbol

I get an error when trying to produce the following symbol: Command \scriptsize invalid in math mode. I'm not sure how to get around it in this case after doing some searching... MWE: ...
4
votes
1answer
38 views

# in url in amsrefs

I want to include a reference to a web page using amsrefs and the webpage bibliography entry type. The url has a # in it. A error message is issued, but after entering scroll mode, it is typeset ...
2
votes
1answer
80 views

Accessing archaic Greek Koppa in the birkmult document class

I will be submitting the final version of an article to Birkhauser using the required birkmult document class. ...
6
votes
2answers
234 views

How can I write a spiral symbol?

How can I get a spiral like There seems to be a spiral-like unicode codepoint: http://www.fileformat.info/info/unicode/char/aa5c/index.htm I tried \documentclass[varwidth=true, ...
4
votes
2answers
1k views

How to draw a DC motor in circuitikz

I'm using circuitikz to create an electric circuit diagram. I'd like to draw a DC motor like this: or this one: It looks like there's no symbol for motors in circuitikz. I'm using ...
6
votes
3answers
18k views

latex symbol for “if and only if” [duplicate]

In LaTeX the symbol for material implication is produced by $\to$, but for biconditional ?
45
votes
3answers
70k views

Escape character in LaTeX

I need to output the below text but since \ is a special character, I cannot: [RegularExpression(@"\d+")] Also sometimes I need use dollar sign $ as well but it seems to be a special char, too. ...
2
votes
1answer
136 views

Changing notation within a subsection LaTeX

I was just wondering if there was a quick fix for this problem. Essentially I have a subsection of my thesis written up with the variable $\xi$ appearing everywhere. To be consistent with the rest of ...
0
votes
1answer
150 views

How to write Mathematical expectation and Probability in the following form

What commands should I use to type the following operators and ?
11
votes
1answer
133 views

Why does fontspec interact with the footnote marks of the \thanks command?

I have discovered a behavior that I cannot explain. When compiling the MWE \listfiles \documentclass{article} %\usepackage{fontspec} \title{foo\thanks{bar}} \author{baz\thanks{qux}} ...
11
votes
6answers
13k 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 ...
0
votes
0answers
29 views

latex Maya numbers error [duplicate]

I found an error for the current Maya numbers generated by LaTeX: Here is the LaTeX code \documentclass{article} \usepackage{mathabx} \newcommand\mathbfont{\usefont{U}{mathb}{m}{n}} ...
19
votes
4answers
4k views

Placeholder for variable as in f(x, .)

What is the best/the usual way to typeset a placeholder for a variable in an equation? Specifically, I want to do something like g = f(x, .) (which of course means that g is defined by g(y) = ...