{stacking-symbol} is about mathematical symbols created by stacking existing symbols above each other.

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54
votes
2answers
107k views

The \bar and \overline commands

I want to represent, say, the closure of a set or the extended reals, e.g., $\bar{\mathbb{R}}$ but unfortunately this creates a bar that is much too small (horizontally) and can barely be seen. On the ...
30
votes
2answers
53k views

\Rightarrow with text above it [duplicate]

When using the command \Rightarrow is there any way to put text above it? I have tried \overbrace but is there a way to do it without this?
26
votes
4answers
39k views

How to get an “approximately proportional to” symbol

I've looked everywhere, and there does not seem to be a symbol for this, i.e. a \propto with a \sim underneath. I've googled ways of combining these two symbols but haven't found anything ...
21
votes
3answers
15k views

How to stack limits for maths operators?

I have a question on how is it possible to create a \sum with two lower limits directly positioned right underneath each other. I have tried hard and cant seem to get anywhere with it.
21
votes
4answers
4k 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?
18
votes
2answers
7k views

How to typeset “evaluated at” vertical bar with two conditions instead of one?

I would like to typeset the differential of a multivariate function evaluated at a point where two of the variables take precise value. I typeset the "evaluated at" using a vertical bar, at the bottom ...
17
votes
4answers
3k views

What is the command for a sum symbol superimposed on an integral sign?

I want to express a sum over all discrete states and an integral over all continuum states. Usually, the sign for this is a $\sum$ superimposed on an $\int$. Is there a command to make this symbol? If ...
17
votes
2answers
11k views

Is there an “underscript” command?

Is there a way to do underscripts? By "underscript" I mean a small font underneath the text object like limits or sums have. I don't want it to behave like a math operator though, where it is typeset ...
16
votes
1answer
37k views

How to write “is distributed as” under a certain hypothesis?

I'd need a special symbol used in statistics. What I need is a tilde with something written upon it. I can get the tilde by using \sim, but I need to add a superscript over it (H_0). If I use ...
13
votes
2answers
3k views

A better notation to denote arcs for an American high school textbook

For years, I've been using a hobbled together command to get the arc notation as used in the textbooks adopted by high schools in my area. I'm not really all that pleased with the result: it's just ...
13
votes
4answers
4k views

Vertical double asterisk that aligns well with the double dagger

The LaTeX text footnote symbol sequence begins with ∗ † ‡ § ¶ ∥. I'd like to define a vertical double asterisk ⁑ (\textastdbl) so that I can insert it into the sequence: * ⁑ † ‡ § ¶ ∥ (note: actual ...
12
votes
3answers
3k views

Arrow between parts of equation in LaTeX

I want to make an arrow under an equation pointing from one part of the equation to another. A bit like an underbrace, but with an arrow. How can I do this?
12
votes
3answers
8k views

How to put something at the top of the \longrightarrow?

I would like to put something at the top of the \longrightarrow, something like \longrightarrow^{k\rightarrow\infty}. However, instead of putting k\rightarrow\infty on the top right corner, I would ...
11
votes
3answers
338 views

position of the slash in hatted \slashed

So I want to denote the Dirac operator with a hat, and I tried both \hat{\slashed{D}} and \slashed{\hat{D}}: the first one has the $^$ rather distant to the $\slashed{D}$, while the second one has the ...
11
votes
1answer
266 views

Straight Braces

Can I make a variant of Latex Braces? In some equations system, I'd like to use a left brace like in this picture:
11
votes
2answers
407 views

Looking for \bigCap or \bigdoublecap

I know \Cap (or \doublecap) and I know \bigcap. However, now I also need \bigCap (or \bigdoublecap) which is a \bigcap with another \cap in between. I already tried using \stackinset from the ...
11
votes
2answers
478 views

conventional temperature symbol

Looking for a symbol for the thermodynamic concept of conventional Temperature corresponding to \SI{298.15}{\kelvin} or \SI{25}{\Celsius} it is basically an uppercase T with a lowercase c overlaying ...
11
votes
1answer
1k views

How can I make an overset symbol at the same size and height as \bar except with a different symbol?

Apologies for the cryptic title, but I was not sure how best to phrase the question in one sentence. I am essentially trying the create a vector symbol with \rightharpoonup as the top instead of the ...
10
votes
4answers
720 views

How to put bullet symbol on top of downarrow symbol

I want to put bullet symbol on top of downward arrow symbol. Can someone help me on this? \documentclass{article} \usepackage{graphicx} \begin{document} The transition is represented with ...
10
votes
2answers
1k views

How can i shrink (or expand) the vertical spacing in \stackrel?

I've seen the following command used a lot to make the triangle-equals operator that means "is defined as": \newcommand{\defeq}{\stackrel{\triangle}{=}} However, I don't like how far apart the ...
10
votes
1answer
195 views

TikZ: Adjust two words among each other by one character

I would like to create a logo in LaTeX. Here I need to adjust two words relative to each other by a chosen letter. Here is an example, where I'd like to get the two red characters exact among the ...
9
votes
2answers
280 views

Typesetting arc over the letter upside down

How can I, using standard tools and packages, draw a "smile" over a letter? For example, I can typeset \wideparen{x} using yhmath package, but I need that arc to be upside down. Of course I want it to ...
8
votes
7answers
5k 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 ...
8
votes
3answers
942 views

How to write a pretty \not \varepsilon

How can I write a pretty \not\varepsilon? I want something like \notin, since I use \varepsilon as a relation symbol like \in.
8
votes
3answers
1k views

double tilde symbol under letter

Currently, I'm representing second and fourth order tensor with this (taken from someone, and i don't really get how it works): % tensor 2: ...
8
votes
2answers
450 views

How to put a symbol inside another in math mode?

In math mode, I would like to put a symbol inside another. Let say I want to put an x inside a V. I would like x to be in the empty space inside the letter V. I guess I need to put V in a box, then x ...
8
votes
1answer
264 views

How to create \Delta with dot in it?

I am just looking for ways to write different \Delta´s (so many different variants of the Alexander polynomial). So I came up with the idea to have a dot in it. But the problem I noticed is, if I ...
8
votes
2answers
812 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 ...
7
votes
3answers
15k views

Add a comment on top of “equal” and “approximate” symbols [duplicate]

I was wondering whether it is possible to add some comment on top of the \approx symbol in a similar way that the command \xrightarrow{text} produces an arrow with text over it.
7
votes
3answers
482 views

Superimpose letter on integral symbol

Good Afternoon all, I am trying to typeset a symbol that I have been using to represent the integral of a regulated function. This symbol is the standard integral symbol, with the letter "R" ...
7
votes
2answers
481 views

How can I underline mathematics using a harpoon of variable size?

I am a new user of LaTeX. I want to underline the answers to mathematics problems using a \rightharpoondown symbol. If possible, I would like a \rightharpoondown of variable size, as in the image ...
7
votes
2answers
214 views

Combine two symbols to one fully scalable

I have to put a colon inside a bigcup symbol, so that the result is treated exactly like the latter. I tried different approaches following various posts here and on other places. The best result ...
7
votes
1answer
6k views

How to put symbol around the equal sign?

In the question Latex Math Symbol: Vitanyi puts a tiny plus symbol over his equals. How do I do that?, there was an answer to how to place additional sign over the equal sign. And my question is, ...
6
votes
3answers
3k views

How do I get a equals sign under letters?

To show that a letter is a matrix my math book puts a equals sign under the letter. How do I do this?
6
votes
3answers
248 views

Nesting outlined boxes in math mode (formulas from Laws of Form)

I want to type-set some formulas from Spencer-Brown's Laws of Form using the nested cross formatting, and preferably using math mode, at times inlined into a paragraph. E.g. the following: So what ...
6
votes
3answers
431 views

Combine blacktriangle and blacktriangledown

I need to combine \blacktriangle and \blacktriangledown so that I get the following result: I already tried $\stackrel{\blacktriangle}{\blacktriangledown}$ but then the triangle pointing up is ...
6
votes
3answers
629 views

Wide inverted breve overset

I want an inverted breve that spans the width of two symbols rather than one. I have tried the suggestions in: inverted breve accent in math mode , and in How to put \smallsmile or \smallfrown on top ...
6
votes
2answers
6k views

Creating non-math mode substitutes for \overset and \underset not dependent on the amsmath package

I have been using \overset and \underset to stack text, e.g.: \documentclass{article} \usepackage{amsmath} \begin{document} $\overset{\text{a}}{\text{b}}$ \\ $\underset{\text{c}}{\text{d}}$ ...
5
votes
2answers
2k views

How to stack three relations

Is it possible to stack three relations or symbols ontop of one another? Specifically I would like to stack three symbols, R, \rightleftarrows and L in order to define a pair of adjoint functors ...
5
votes
3answers
2k 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 ...
5
votes
3answers
507 views

Can one break stackrel text into multiple lines?

I'm writing something up where I want to be explicit about some elementary operations I'm performing. I have an arrow between matrices with some text above the arrow showing what I'm doing. The text ...
5
votes
3answers
2k views

How to put a symbol inside a circle arrow?

I'm trying to draw a clockwise circle arrow with a symbol inside. My current solution requires manual alignment of the content, and as such doesn't look very good. ...
5
votes
2answers
204 views

Minus-like sign with stuff on top

I want to create an operator that works like a minus sign (including the spacing), but has the characters res on top (in \textrm mode). The length of the minus sign should be adjusted to look like ...
5
votes
5answers
346 views

add (a little bit long) comment on the equal sign?

There are posts here explained how to Add a comment on top of "equal" and "approximate" symbols , the idea is to use \stackrel{text}{=}, however, if the text is a bit long, for ...
5
votes
2answers
396 views

setting letter atop vdash

I've got the following problem: I want to set the letter "W" atop a "\vdash", like here: I've tried to get this result with \atop, \stackrel, and \above, but didn't get the wished result. All ...
5
votes
2answers
142 views

Need good looking replacement for \widetilde{s'} (to mark something with a prime)

Throughout my document I have several formula elements named s with variants marked as s'. Furthermore, I need to mark these using some other means. Currently, I use \widetilde, giving me ...
5
votes
3answers
164 views

Vertical spacing problems with a custom math symbol in LaTeX

I need to have a few custom math symbols by adding different number of dots on top of the standard \preceq math symbol. So, I have done this as follows: ...
5
votes
1answer
389 views

Placing text below other text

How can I place some text centered below other text on the line? I want to create similar to results to what is found in the ruby package, but instead of placing text above, the extra text is put ...
5
votes
1answer
74 views

Stacking arrays

I want to reproduce something called the tower notation: I have found out that I can make the tables like this: \begin{array}{c|c} S & S\\ S & S\\ \hline \multicolumn{2}{c}{DP\bs S}\\ ...
5
votes
2answers
166 views

Stacking symbols

How could I stack two symbols on top of each other, so that they would appear smaller, i.e. something like \begin{array}a\\b\end{array}, but would fit nicely in a single line with the rest? So for ...