{math-mode} is about typesetting mathematical content, e.g. tweaking the appearance of spacing and symbols in a formula, or producing specific mathematical constructs. For questions about "wrapper" environments like equation or align, consider the tag {equations}.

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16
votes
1answer
3k views

How to use more than 10 tab stops in \bmatrix?

I'm using bmatrix environment from the amsmath package, and I'm trying to do something like this: \documentclass{article} \usepackage{amsmath} \begin{document} \begin{equation} ...
8
votes
2answers
234 views

replace often used Tex-Literals ($ and $$) for math regions into \( or \) and \[ or \]

Is there an editor or IDE (or a script) for substituting the TeX-Commands $ and $$ for opening and closing math regions into the corresponding LaTeX-Commands \(,\) and \[,\]? I'm sure there is a tool ...
17
votes
7answers
8k views

Average integral symbol

Is there in LaTeX a symbol or a macro for the average integral with a horizontal slash? I know about \strokedint, but I'd prefer the dash to be horizontal.
14
votes
4answers
7k views

Diagonal dots spanning multiple lines/columns of a matrix

I'm filling in large sparse matrices, for example \begin{bmatrix} 0 & -2 & 1 & & -1 & 2 \\ 2 & \ddots & \ddots & \ddots & & -1 \\ ...
14
votes
3answers
8k views

Footnote in math mode

How can I insert a footnote into math mode? I tried this (with required packages) \usepackage{amsmath} \usepackage{hyperref} \usepackage{ccaption} And i.e if I try \begin{eqnarray} foo && ...
10
votes
6answers
934 views

A \boxed alternative with nicer spacing?

I like using \boxed to emphasize my answers in homework problem sets. However, whenever I use superscripts/exponents inside the box, the box becomes taller than it seems it should. This causes two ...
13
votes
5answers
1k views

Double superscript error involving tilde

When I write {{\tilde{C}}^{0}_{har}}^{\Gamma} (or the same with fewer curly brackets) in Tex I obtain a double superscript error and I can't solve it. Does someone know how to fix this?
3
votes
1answer
2k views

“!Missing $ inserted” error using amsmath environments

I am trying to compile a document with equations but whenever I use \begin{eqnarray}..\end{eqnarray} or \begin{align}...\end{align} or anything like this I get the error msg !Missing $ ...
3
votes
2answers
475 views

Stealth arrow in math?

Is there an easy way to produce stealth style arrows in normal math mode? By "stealth" I'm thinking of TikZ stealth arrowhead. Something like \rightarrowstealth? The question originates from a limit ...
59
votes
3answers
19k views

What's the difference between \mathrm and \operatorname?

I apparently can't see the difference in a compilation (pdflatex) between \mathrm and \operatorname. So, as in the title the question is: is there a difference? Which one is preferable in what ...
50
votes
2answers
9k views

Two letter variable names

In math mode, TeX assumes "hidden multiplication" (so that two variable names put nearby have invisible multiplication between), so that, AFAICT, expressions like $ABC$ are rendered with small ...
30
votes
2answers
19k 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: ...
22
votes
5answers
8k views

What's the best way make an “augmented” coefficient matrix?

When studying systems of linear equations, it's nice to remind people that the last column of the coefficient matrix holds the constants. This is often done in books by putting a vertical line ...
26
votes
1answer
25k views

How to color math symbols?

One can use the command such as \textcolor[rgb]{1.00,0.00,0.00}{boundary} to color the word "boundary" in a document. Here is my question: How to color the math symbols in $$? For example, can one ...
24
votes
4answers
3k views

Numbers outside Math environment

Should numbers inside the text be placed inside a math environment? For example, if I am writing ...indent code by 4 spaces..., should I write it this way or ...indent code by $4$ spaces...? ...
34
votes
4answers
5k views

Should I \mathrm the d in my integrals?

When writing an integral, it seems like something should be done to separate the "d", as in \int f(x) dx, so as not to confuse it with a variable. I've seen it left as-is, bolded, and straightened. ...
29
votes
5answers
3k views

How to automatically resize the vertical bar in a set comprehension?

I have a simple command which I use to write set comprehensions so that the braces automatically resize with respect to size of the enclosed arguments, e.g. \usepackage{amsmath} ...
20
votes
4answers
7k views

Bold italic vectors

I am trying to display vectors as bold and italic. The command \mathbf sets the letters non-italic. I also googled a bit and stumbled upon \mathbf{\em y} or \mathbfit{y}, which all didn't work. I ...
12
votes
4answers
2k views

What is the correct way to do delimiters?

I've always used \left and \right with my delimiters, but Martin Heller's answer to another question indicates that this method gives incorrect spacing. The correction appears to be prepending ...
4
votes
1answer
801 views

How can I add some enhancement to the matrix [duplicate]

Possible Duplicate: Highlight elements in the matrix \documentclass[12pt,a4paper]{mwrep} \usepackage{amsmath} \usepackage[nodisplayskipstretch]{setspace} \setstretch{1.5} \begin{document} ...
9
votes
2answers
1k views

Broken matrix - gaps in brackets

This is my minimal working example. \documentclass[12pt,a4paper]{mwrep} %\usepackage{amsfonts} \usepackage{amsmath} %\renewcommand\baselinestretch{1.5} \begin{document} \chapter{Example} ...
8
votes
1answer
1k views

How to organize labels when there are too many equations?

I'm writing a moderately long text using LaTeX, and it's great to be able to organize chapters, sections, appendices, and everything else almost automatically. One thing has been bothering me though. ...
19
votes
2answers
3k views

How can I prevent LaTeX from breaking inline formulas globally?

I am using the acmsmall template and my inline formulas are being broken at equal signs and arrows; how can I prevent them from being typeset like that globally (i.e. without having to put tildes ...
16
votes
4answers
7k views

How to typeset indices before a symbol?

I know how to write a usual index with the help of the underscore, but I seem to be unable to find out how to write an (upper/lower) index in front of a letter/text. These kind of indices are common ...
16
votes
1answer
5k views

How to reference equations using letters and numbers

Sometimes it is convenient to refer to a group of equations by a letter and a number. For example: 2+1 (A1) 2+4 (A2) x^4 (B3) x^e (B4) Placing ...
10
votes
2answers
6k views

A lateral brace to group a set of equations with labels

I have a set of equations that I'd like to display together (as an example, the Maxwell's equations). Requirement #1: I'd like to have them labelled like in an align environment \begin{align} ...
5
votes
2answers
1k views

Underbraces in Matrix Divided in Blocks

How to put underbraces, inside the parenthesis of a matrix, to name both sides of the blocks? \documentclass[a4paper,12pt]{article} \usepackage{amsmath} \usepackage{array} \begin{document} . . . \[ ...
14
votes
3answers
16k views

How to write a function (piecewise) with bracket outside?

How to write this Piecewise function using LaTeX? I tried $ \begin{array}{cc} \{ & \begin{array}{cc} 0 & x\leq 0 \\ \frac{100-x}{100} & 0\leq x\leq 100 \\ 0 ...
13
votes
3answers
11k views

Supremum of the infimum

Consider the following snippet: $$\text{d}_{H}(A,B) = \max\left\{ \sup_{a\in A} \inf_{b\in B} \text{d}(a,b),\sup_{b\in B} \inf_{a\in A}\text{d}(a,b)\right\}$$ In the output, the text under the ...
11
votes
6answers
435 views

Typesetting 144…4 with “n times” under the 4's is easy, but what about \sqrt{144…4}?

Inspired by this question on the math StackExchange, suppose you want to typeset the square root of the number 144...4, that is, 1 followed by n 4's. If you write $\sqrt{1\underbrace{44\ldots4}_{n\ ...
10
votes
3answers
556 views

How to create vertical and horizontal dotted lines in a matrix?

Similar to this question, I am trying to output a similar matrix with dotted line instead of dashed line. Is there anyway to do this? I also try to use these three packages: ...
10
votes
2answers
5k views

How to make math font huge

I would like to typeset a simple-to-medium-difficulty math formula on an A4/letter paper. It needs to be huge and preferably centered and portrait. I can take care of the paper size, the orientation ...
10
votes
2answers
2k views

Force line break inside a \lim argument in align environment

Inside an align environment I have a \lim with two variables which should be displayed in two lines: \begin{align} ... f & = \lim _ {a \rightarrow -\infty \linebreak b \rightarrow \infty} ... \\ ...
14
votes
2answers
372 views

Why does \widehat behave differently if I insert \hspace{0pt}?

I am getting some inexplicable behaviour from \widehat: \documentclass[12pt,a4paper]{article} \usepackage{amsfonts} \begin{document} \[ \fbox{$\widehat{\mathcal{C}}$}, ...
12
votes
4answers
2k views

How to edit the linear programming in LaTeX?

How to edit a linear programming as the following: Max z = x1 + 12x2 s.t. 3x1 + x2 + 12x3 ≤ 5 x1 + x3 ≤ 16 15x1 + x2 = 14 xj ≥ 0, j=1,2,3. I want the format to be ...
8
votes
4answers
359 views

How to construct a long equation that is split in LHS and RHS to occupy a narrow column?

I have a homework document using 2-column article document class as follows. \documentclass[twocolumn]{article} \usepackage[a4paper,margin=1cm]{geometry} \usepackage{amsmath} \begin{document} ...
7
votes
1answer
1k views

Coloured math in beamer

I have a question: Is there any way to have math (everything between $s) in different colour than text (for example, green) in beamer?
5
votes
2answers
2k 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 ...
0
votes
2answers
578 views

\begin{equation}: “Display math should end with $$” error?

I'm pretty new to LaTeX, completely new actually, and there is one thing I can't quite understand. I get the error "Display math should end with $$" when writing an equation like this: ...
12
votes
1answer
3k views

How can I position equation numbers always to the left side?

Equations and amsmath environments put equation numbers to the right side by default, the output of \begin{multline} some equation \end{multline} is: equation (number) How can I change it this ...
12
votes
5answers
3k 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 $$ ...
8
votes
1answer
1k views

siunitx: Bold single numeric cells

I'm struggling to make a single numeric cell in an siunitx table bold. (A similar question for making a whole column bold is available here.) I want to define a simple macro which I can set for the ...
7
votes
1answer
447 views

Can I redefine the dollar

I want to capture the math mode through a redefinition of the $. I thought about something like \def$#1${here was a formula} % to test $x+y=z$ I would expect "here was a formula" as output. Is it ...
6
votes
1answer
1k views

Displaying an equation in a list

How could one get a displayed equation inside a list environment, say itemize, so that the equation is both centered horizontally and on the same line as the bullet, but with the bullet still on the ...
4
votes
1answer
272 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.
28
votes
2answers
3k views

Drawing a hypergraph

What is the proper way to draw a hypergraph? Is there a package to do this, or is there an easy way to draw such diagrams with a common drawing method like tikz? I'm trying to draw something like
36
votes
6answers
1k views

Microtypography on equations

Is there a way to make all three lines of math in the code below take up the same amount of length by use of font expansion? I know too little about microtype to even see if it could offer a solution. ...
9
votes
2answers
28k views

Dot notation for derivative of a vector [closed]

If I want to use the dot notation for the time derivative of a vector is better (more common) to put the dot over the vector, or the other way around \dot{\vec{v}} \vec{\dot{v}} The first says ...
56
votes
5answers
90k views

How to add a matrix to a LaTeX document

How do we add a matrix to a LaTeX document?
20
votes
1answer
356 views

Sloppy \left and \right?

The \left and \right commands often produce improvidently large delimiters. It almost always looks better to use delimiters that are just slightly too small than delimiters that are too large. With ...