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

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2
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0answers
15 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
1answer
63 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 ...
1
vote
0answers
22 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 ...
2
votes
1answer
40 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
33 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
39 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
885 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
488 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}} ...
26
votes
1answer
5k 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
88 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 ...
5
votes
2answers
93 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
46 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
28 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 ...
19
votes
2answers
5k 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
38 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 ...
5
votes
2answers
72 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} ...
2
votes
1answer
44 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
82 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
365 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
35 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 ...
1
vote
2answers
31 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
81 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 ...
6
votes
3answers
282 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
59 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 - ...
4
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
31 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
16 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 ...
60
votes
4answers
10k 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
30 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
23 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
166 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
40 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
159 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
71 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
67 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
23 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
122 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
81 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
91 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 %% ...
7
votes
2answers
89 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} ...
16
votes
3answers
8k views

Define pretty sets in LaTeX; esp., how to do the condition-separator?

E.g., I have this set: \{ \alpha \in \Sigma^\omega | \exists^\omega n : \alpha [0,n] \notin \Sigma^* a_1 \Sigma^* a_2 \dotsb a_n \Sigma^* \} Here, I use | as the separator for the condition part. ...
0
votes
0answers
13 views

Package for angle commands [duplicate]

I want to use the command "\angle". I have the "amsmath" package included im my document, and I can use any other math commands, but not this. What I need to do? It requires a different package? ...
3
votes
2answers
80 views

amsmath's multline and fleqn

As a fleqn fanatic, I run across this problem once every week: when splitting a long formula using amsmath's multline, the middle lines are flushed left: \documentclass[fleqn]{article} ...
1
vote
2answers
30 views

bmatrix, how to give details after particular row bracket[ ]?

I am new to LaTeX. I want matrix like in bmatrix [1 1 1] R1=R1-R2 (Row1= Row 1 - Row 2) 1 1 1 R2<-R1+R3 1 1 1 I want "R1=R1-R2" after the matrix [1 1 1] but when i add this its goes to ...
2
votes
1answer
70 views

Problem numbering equations properly

I'm trying to create some equations with amsmath with captions and references. I'd like to suppress the equation number in the margin. I know this can be done using the equation* environment but ...
3
votes
2answers
96 views

Redefining line break (double backslash) for align environment

I am trying to figure out if it is possible to (locally) redefine \\ (double backslash) within amsmath's align environment. On the one hand, I'd like to be able to dynamically insert extra columns, on ...
6
votes
2answers
54 views

Using \ensuremath inside \text

Using \ensuremath inside \text works fine and gives good results. However, I realized that the spacing in superscripts changes. I tried working with \mathchoice, but that doesn't know that it is in a ...