{amsmath} is a package provided by AMS that enhances LaTeX's mathematical typesetting capabilities in various ways.

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10
votes
2answers
3k views

Why doesn't lineno number a paragraph when it is followed by an indented equation?

While searching for the source of missing line numbers, I realized that paragraphs followed immediately by an equation have no line number, but this is fixed when a space is included, e.g. the ...
2
votes
1answer
47 views

Making \xrightarrow longer but without using spaces

I have this table, and as you can see I make the last arrow longer with loads of spaces. Is there a better way to make it as long as the other \plusarrows but at the same time with a centered text ...
1
vote
1answer
48 views

Appropiate size of mathmatical formula in a text

I used this code to inset a mathematical formula in my two-columns text. ($Prob_{SVM}-Prob_{MLP}$) Comparing to normal text, Isn't it a little big and inappropriate? How can i fix it?
1
vote
1answer
71 views

Even vertical spacing in multline and gather environments

Using fractions or expressions with sub- and superscripts may lead to uneven vertical spacing in math environments spanning several lines (i.e., align, gather, multline,...). A fix for align was ...
4
votes
1answer
145 views

Symbols for left and right limits

I am using lualatex, are there symbols for left and right limits, like small "-" and "+" to put above the numbers? For now I use \documentclass[a4paper,12pt]{book} \usepackage{fontspec} ...
68
votes
5answers
11k views

Is there a preference of when to use \text and \mathrm?

I'm unsure of when it is preferable to use \text versus \mathrm, is there some unwritten rule about the use of these? For example, I saw the following code in a math post: ...
6
votes
1answer
393 views

commath and \ifinner

The commath package use the TeX command \ifinner to select between inline math mode and display math mode. Because of this, it fail to work properly with some display math environments. In the breqn ...
3
votes
1answer
69 views

Using \qedhere automatically in every proof

I'm currently using \qedhere at the end of my proof every time since I'm really satisfied with the positioning of the qed mark. The problem is, I use it so often that I want to make the qed mark ...
4
votes
3answers
61 views

Align an aligned environment nested into split

I want to align the lines inside an aligned that is nested inside a split with the rest of the equation. This is an example: \usepackage{amsmath} \begin{equation} \begin{split} \text{max:} ...
2
votes
0answers
22 views

Put parentheses by default when referencing an equation [duplicate]

I have this equation: \begin{equation} \label{eq:helicsol} x = y \end{equation} and then I have: As we can observe, the solution of \ref{eq:helicsol} and I get: As we can observe, the ...
5
votes
2answers
153 views

Missing number, treated as zero with amsmath and calc

This simple code produces "Missing number, treated as zero" \documentclass{article} \newcounter{test} \newcounter{testtwo} \usepackage{calc} \usepackage{amsmath} \begin{document} ...
5
votes
1answer
97 views

How to get LaTeX to ignore a specific warning?

I use \over even though it is a bad practice (yes, yes, I know I shouldn't). Whenever I compile a LaTeX file using it, I get the message: Foreign command \over; \frac or \genfrac should be used ...
3
votes
1answer
78 views

How to move amsmath equation label into LHS margin?

I am using amsmath and I would like to move the equation label into the left hand side margin aligned with the top of the equation. I have looked through the documentation but I can't find anything on ...
1
vote
0answers
53 views

Collection of all definitions, theorems, etc. as flash cards

Is there a way to collect all definitions, theorems, corollary etc. at the end of an document as flash cards in din a6 in landscape? Without copying all the data again? So that the document contains ...
2
votes
2answers
77 views

How to box aligned equations

\boxed{ \begin{align*} x &= 1 \\ y &= 1 \end{align*} } obviously doesn't work/compile.. \begin{framed} \begin{align*} x &= 1 \\ y &= 1 \end{align*} \end{framed} sort of work, but ...
2
votes
1answer
931 views

Getting AUCTeX and amsmath to work with multiple files

I'm using Emacs 23.1.1, with AUCTeX plugged in, to edit my .tex files, but I'm having a small problem with my amsmath environments. The current document I'm editing is divided into multiple files. ...
3
votes
3answers
493 views

Preceding a command by an argument

\usepackage{amsmath,amssymb,amsopn}% read amsldoc.pdf for more details %\genfrac{left-delim}{right-delim}{thickness}{mathstyle}{numerator}{denominator} %\newcommand{\frac}[2]{\genfrac{}{}{}{}{#1}{#2}} ...
28
votes
1answer
6k views

Problem with qedhere

In a paper I'm writing, I end a proof with a displayed equation that has some cases in it. The relevant code looks something like the following: \[f(x) = \begin{cases} 2x & \text{if $x<0$}\ ...
7
votes
4answers
142 views

Aligned underbraces between amsmath equations

I have an \amsmath aligned environment containing some equations aligned with &=. I want to be able to place underbraces between the equations in such a way that that both the contents and “point” ...
19
votes
3answers
2k views

How do magic \dots work in amsmath?

The amsmath package redefines the \dots command so that it "guesses" the correct height of the dots with respect to its context. For example $x, \dots, y$ will produce three lowered dots, aligned ...
7
votes
2answers
185 views

Define certain letter in math-mode to be always non-italic - using unicode-math in lualatex

I once had this question a while ago, asking about how to set the letter j always to be non-italic j in math mode without using \mathrm. The provided solution was: ...
3
votes
1answer
60 views

\begin{align} not working as expected

In this small snippet of code, I'm doing quick derivation to arrive at an equation to be used later in the analysis: $ |\vec{F}|=q|\vec{v}||\vec{B}|sin(\theta)\\ m\frac{v^2}{r}=qvB\\ ...
1
vote
1answer
137 views

Extra alignment tab has been changed to \cr. <recently read> \endtemplate [duplicate]

I need to insert a 19x19 matrix in my article, but when I try this code: \begin{vmatrix} 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 ...
23
votes
2answers
6k 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} ...
3
votes
1answer
55 views

Missing } inserted. \end{alignat}? why this error keeps on popping up?

here is a part of my code, which I am trying to run. \begin{alignat}{2} [M]: \max_&Z ~ \label{eqnP27}\\ \mbox{s.t.}~ %capacity constraints & \sum_{k \in H} y_{k} \leq ...
13
votes
2answers
2k views

Footnote in align enviroment

It appears that one is not supposed to use \footnote in math mode as per this appropriately named question: Footnote in math mode. However, it appears that I can get it to work without having to ...
2
votes
1answer
78 views

Why are \colon and \mathpunct{:} not equivalent? [duplicate]

According to this answer, \colon is of type \mathpunct. But in the MWE below, the outputs of the two lines are not identical. Why not? \documentclass{article} \usepackage{amsmath} \begin{document} ...
3
votes
1answer
152 views

Trigonometric function script? [duplicate]

Is there a script for the sinc function analogous to \sin for sinus? If not, what method should I use to insert it in a equation?
10
votes
3answers
403 views

Boxed equation with number

My minimum working example: \documentclass{report} \usepackage{amsmath} \begin{document} \begin{center} \boxed{K_{k+1}=P_ka_{k+1}^T(a_{k+1}P_ka_{k+1}^T+I_N)^{-1}} \end{center} \end{document} ...
0
votes
0answers
36 views

Typesetting system question related to amsmath [duplicate]

After consulting the existing questions and answers related to packages for Mathematical Equations, I found this recommendation, given by @cmhughes, advising to use amsmath. After including it in the ...
2
votes
2answers
53 views

Equation and math system on same line

To add a math system into a LaTeX document, I add to preambol \newenvironment{sistema}% {\left\lbrace\begin{array}{@{}l@{}}}% {\end{array}\right.} then in the document I do something like ...
1
vote
1answer
199 views

Epsilon and log functions

I m trying this T(n) \epsilon \left(\Theta(n^\log_22$\right) = $\Theta(n^\log_22 )$ = $\Theta(n)$ but i want below result. Is E sign is epsilon only . And also log bracket not coming properly and ...
7
votes
3answers
354 views

How to typeset piecewise functions [duplicate]

I don't know what the big { thing is called so can't search and when tried and write in LaTeX and didn't find this expression or structure in word either.
4
votes
1answer
80 views

Extra vertical space when using align and no numbering

I think I've found a small bug in the way the showonlyrefs=true option in mathtools works. Consider this semi-minimal example: \documentclass[12pt]{article} \usepackage[utf8]{inputenc} % UFT8 - ...
5
votes
2answers
1k views

How can I use align environment in conjuction with iopart.cls class?

I would like to use align environment over eqnarray for typesetting my equations. However the publisher forces to use the iopart.cls as the article class file which, as they mentioned, is incompatible ...
4
votes
1answer
67 views

Overarrow in latex

Hello I'm have created some Latex Matrix equations. But for remembering how it works i wanna create a matrix dimensions workflow like: \begin{align} &\hphantom{(2\times 3)( }% ...
0
votes
0answers
17 views

How to set equation number with respect to the article instead of chapter? [duplicate]

I am working on a paper which is based on a special template. I need to use the \chapter to organize by document. In each chapter, if I have \begin{equation}, the equation is number with the chapter ...
69
votes
4answers
13k views

What are the differences between $$, \[, align, equation and displaymath?

I once learnt, that it is uncool to use $$, but why is that? Why does \[ not act as a abbreviation to \begin{align}? I noticed, that there is a difference, since one cannot use & and \\ inside a ...
1
vote
1answer
61 views

Undefined control sequence with \overbar

can anyone tell me why I get an "undefined control sequence" error with the following code please? \documentclass[times]{fldauth} \usepackage{amsmath} \usepackage{amsthm, amssymb, amsfonts} ...
3
votes
1answer
38 views

How to put \varinjlim in the section name?

Here is (almost) minimal example of the file, which gives the error. \documentclass{article} \usepackage{amsmath} \usepackage[english]{babel} \begin{document} \section{Section name with varinjlim: ...
10
votes
2answers
184 views

How to globally put subscripts in math-mode in upright font using amsmath?

I'm often apply the subscript environment in math-mode to assign e.g. materials to material properties, $\eta_{oil}$, $\lambda_{air}$, etc. Not very mathematical but hey, I'm an engineer ;-) I'm ...
6
votes
2answers
56 views

Expand arrows within an array

Any ideia of how I can expand the \xrightarrow so that they all have the same size? (for aesthetics) \documentclass{article} \usepackage{amsmath} % \text nas equacoes \usepackage{mathrsfs} ...
5
votes
3answers
230 views

How to make large binomial coefficient?

I have a potentially-repeated question, but I was unable to find anything about this. So, I need to create a giant binomial coefficient in LaTeX (something around 1000pt). When I compile the below, ...
1
vote
4answers
80 views

line break in a centered cell of tabular

I have a table like in the following example: \documentclass[11p,twoside,a4paper,leqno]{article} \usepackage[utf8]{inputenc} \usepackage{mathtools} \usepackage{amsfonts} \usepackage{xcolor} ...
5
votes
2answers
85 views

How to mimic spacing around \bullet with \DeclareMathOperator?

I'm trying to define \conjunction by means of \textbullet instead of \bullet, since the latter looks too big in logical formulas. How can I make the spacing around \conjunction to behave like the ...
0
votes
0answers
63 views

Editor text color in align environment

I am using TeXworks to type up very long assignments. For the types of assignment I type up, I usually have many lines of equations of all sorts with interjections of normal text as explanations and ...
11
votes
3answers
146 views

Incorrect spacing after minus sign with combination of amsmath and hyperref

When no packages are loaded, no space is inserted after the minus sign of a negative number: \documentclass{article} \begin{document} \begin{equation} -1 = -1 % output: -1 = -1 \end{equation} ...
6
votes
2answers
178 views

More than two columns amsmath cases

I'm trying to use the cases environment to show an arbitrary equation. But I noticed that it only allows me to use 2 columns. However, I would require a third column, or perhaps a fourth as well. An ...
8
votes
2answers
108 views

\bigl and \bigr in sub/superscripts

When typesetting expressions with multiple adjacent parentheses, I like to use \bigl and \bigr on the outermost parentheses to make it easier to read, especially with 3 or more parentheses in a row. ...
1
vote
0answers
35 views

How to construct block matrix with shadowed entries? [duplicate]

Is there a simple way of drawing matrices with shadowed blocks like the ones in the picture? I've tried something like Gonzalo Medina's proposal: %% with these packages loaded %% ...