{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
42 views

Underlining fractions

I need to be able to underline equations involving fractions, which are aligned using the alignedat environment from amsmath. To be able to underline at all, I'm using the solution from this question ...
22
votes
1answer
208 views

Please explain a strange interaction between bytefield, unicode-math, and mathtools

bytefield gives me different results when used in association with mathtools and unicode-math when used together. Here's my 'good' MWE: % !TEX TS-program = XeLaTeX \documentclass[a4paper]{article} ...
27
votes
2answers
305 views

Why is there a \, space at the beginning of the “aligned” environment?

Near the beginning of the definition of the amsmath environments aligned and gathered (and also mathtools' multlined) there's an explicit thin space \,. This often has to be cancelled with \!, as ...
2
votes
1answer
23 views

How to get to use {align} with an unusual document class?

So I'm required to use a particular documentclass, "llncs", which for some reason is preventing me from using {align}. Is there an alternative that I can use? my full tex is \begin{align*} \forall ...
12
votes
2answers
58 views

vertical dotted line in column vector / amsmath matrix

I would like to typeset the following set of equations: ... but with contiguous, vertical dotted lines in the column vectors, such that the top and bottom rows of the matrix and of the vectors are ...
3
votes
5answers
60 views

Left superscript dot

I would like to achieve the following: a dot right of an expression with this minimal example \documentclass{article} \usepackage{amsmath} \usepackage{accents} \newcommand{\dotr}[1]{% ...
2
votes
1answer
34 views

Aligning equality sign with overset text

I'm typing a logic definition within an align environment that uses \overset{def}{=} from the amsmath environment. However, the new sign is aligned vertically based on the equality sign, and not on ...
4
votes
2answers
51 views

Uneven spacing around ellipsis in $[A_1;\dotsc;A_n]$

I've noticed that when a \dotsc has a semicolon on each side, there's uneven space around the ellipsis created. With \documentclass{article} \usepackage{amsmath} \begin{document} \begin{align*} ...
5
votes
1answer
53 views

(Nonfatal but Symptomatic) Conflict of amsmath and mathstyle Packages

This was brought to my attention by our colleague, Lover of Structure, but since it affects my scalerel package (which began using the mathstyle package to detect the current math style, as of version ...
3
votes
3answers
70 views

How to simply center equations using eqnarray*?

So I have this code here: \begin{eqnarray*} x + (y - 2)^4 = w^2 \\ (x - 9)^2 + y_2^2 = w^2 \\ x + (y - 2)^4 = w^2 = (x - 9)^2 + y_2^2 \\ \end{eqnarray*} As you can see, I get the ...
5
votes
1answer
58 views

Annotated equations

I need many of my equations to have annotations stating their domain of validity, or certain conditions for which the equation is true. Preferably, these would be flush right against the equation ...
0
votes
0answers
47 views

Is it possible to remove chapter number from align environment? [duplicate]

Basically I have written a proof using the align environment in a new .tex file and the numbers in the proof came like this (how I want them): Line1 (1) Line2 (2) Line3 (3) Now I've ...
12
votes
2answers
75 views

Input manually a number into \eqref

Often while writing papers I find the need to cite particular equations from other papers. For example, the landmark paper by Einstein, Newton, and White (2015) lays out the theory of everything in ...
23
votes
5answers
4k views

A MiKTeX update removed amsmath as obsolete – can I use another package or get it back?

I have a problem with amsmath package. After an update this package was removed because it was obsolete. But what package can use instead of amsmath?
8
votes
2answers
878 views

Change equation font to Times New Roman?

How would I change equation font in the \begin{equation} environment to Times? For instance, I use this code in LaTeX: \begin{equation} \begin{split} {L_{CML}}\left( \theta \right) ...
9
votes
4answers
149 views

Curved arrow describing a step in a mathematical derivation

Is it possible to achieve something like this in LaTeX? I want a curved arrrow pointing from 1st line to the other line and is coupled with an equation number which indicates the equation used. I ...
8
votes
3answers
113 views

Numbering a set of horizontally distributed equations

Having different horizontally distributed equations inside an align environment, only lines are numbered, but not individual equations. How can the left equations be numbered using subequations? ...
6
votes
3answers
95 views

aligned environment of amsmath vs array environment

Today I found out the existence of the aligned environment of the amsmath package. However, I can't see the advantage of using it instead of the array environment from the example provided in ...
2
votes
3answers
85 views

Grouping two lines inside align environment to put smth. to the left of them

I have an equation which is alligned at 1st equal sign like this: \begin{align} a &= b + c \nonumber\\ d &= e + f \label{eq1}\\ %this is row 1 g &= h + i \nonumber\\ %this is ...
2
votes
0answers
96 views

LaTeX is not compiling consistently

I am really new to LaTeX, so it's possible I'm making some egregious error that I'm not aware of, but my documents are compiling inconsistently. By that I mean it compiles correctly maybe one in ...
1
vote
1answer
70 views

How to use \displaybreak?

I have a very long equation \begin{equation*} \begin{aligned} multiple line equation... \end{aligned} \end{equation} But just using the above code causes the whole equation to start from a ...
2
votes
2answers
36 views

“\bar allowed only in math mode” error

When I run \begin{align*} \textit{m}(A) &=a&, \\ \textit{\bar{A}} &=1-a& \\ \textit{m}(B) &=0& &\text{for} B \neq A \text{ or} B \neq \bar{A} \end{align*} I get the ...
8
votes
2answers
159 views

How to format Maxwell equations?

Is there a variant of split environment from amsmath package which would allow for two aligned equations in a row? I want to format two pairs of Maxwell equations in two rows and put single equation ...
0
votes
0answers
31 views

How can I typeset a summation symbol with a two-line bottom? [duplicate]

I am using the amsmath and amssymb packages. Is it possible to type a summation with two lines of text under the symbol? Here is an screenshot example from a book I'm reading (which was clearly ...
4
votes
1answer
67 views

Trouble creating properly aligned matrix within a matrix

I'm trying to insert parentheses around a group of elements creating a matrix within a larger matrix. So far I have this: \begin{equation} \begin{bmatrix} \begin{matrix} 0 & 0 \\ 0 & \omega_0 ...
4
votes
2answers
57 views

Custom cross-reference formats (e.g. “Equation 1” instead of just “1”) [duplicate]

I have an equation system set up as below. When I reference it however, ie. with \ref{eqn:surfacetension}, it only prints the number '1', and not 'Equation 1'. How can I modify the code to do that? I ...
18
votes
4answers
2k views

Using display style fraction in a matrix environment

I'd like use the \dfrac command in a bmatrix environment as follows: \documentclass{article} \usepackage{amsmath} \begin{document} \[ \begin{bmatrix} \dfrac{\partial f}{\partial x} \\ ...
0
votes
0answers
80 views

Numbered equation makes small sum operator

I am using the followig: \chapter{Theoretical framework} \section{Econometric framework} \begin{equation} {r^{h}_{t+1}}= \alpha+\beta x_{t} + u^{h}_{t} \end{equation} %random test equationn ...
11
votes
4answers
3k views

Intertext vertical spacing

How do I reduce the vertical spacing of \intertext?
13
votes
5answers
222 views

Typesetting math: an optimisation problem (cost & constraints)

I really struggle to align a system of equation for an optimisation problem. It was all ok at the beginning until I started adding the constraint. I've got this code so far: \documentclass{article} ...
6
votes
1answer
54 views

Temporarily undefining a “starred” command

I would like to temporarily undefine a command. The reason for this is that I need to use a specific class file which defines the equation* using \@namedef and I would also really like to use the ...
2
votes
1answer
53 views

Automatically start a new line at the beginning of a proof environment?

I use amsmath to provide the proof environment. However, if a itemize (or tikzpicture) environment immediately follows the proof environment, xelatex will produce a messy result: \begin{proof} ...
2
votes
1answer
94 views

Proper way to typset minimum value of variable in formula?

To typeset a value with a subscript I use this: $U_{\text{res}}$ Which results in: Now I'd like to write "the minimum value of Ures", how would I correctly typeset that? The first thing I tried ...
2
votes
1answer
80 views

Is a cupdot symbol available in amsmath? [duplicate]

I'm looking for a command in amsmath that makes something like \cupdot in MnSymbol (I hope spell it right...). Look at the picture below: i.e. a command that puts a dot instead of the "+". One ...
3
votes
2answers
49 views

Formatting equations and text in amsmath [duplicate]

I'm working on a document on how to solve some basic integral problems. However, I'm having difficulty getting \begin{equation}\end{equation} to do what I need it to do. I would like all of my ...
1
vote
1answer
51 views

System of equations with tag which has subscript

Suppose I have an equation u_t = F(x) u(0) = u_0 I want to put a brace around on the left hand side of both lines and give it a tag with a subscript (eg. P_w) AND I want to be able to refer to ...
3
votes
1answer
70 views

Text inside Math

I tried doing this: \usepackage{amsmath} $x^2 \text{something} y^2$ but that just came out like: x^2somethingy^2 Anyone know how to fix this issue? I need to have text inside my math ...
5
votes
3answers
64 views

Left-align math with fleqn inside split environment

Below, how would I move the first math-line left so that a^2 left-aligns with where? \documentclass{article} \usepackage[fleqn]{amsmath} \begin{document} \setlength{\parindent}{0pt} Some text ...
1
vote
1answer
35 views

Left and right subscripts in multline environment

I am using \documentclass[12pt]{article} \usepackage{amsmath} \begin{document} \begin{multline} \big_{1}[_{2}(...)_{2}\big]_{1}. \end{multline} \end{document} The lower suffix works only for right ...
2
votes
2answers
118 views

Breaking a long math expression

I am trying to type long expression by using parenthesis inserting some sentences, as an example I have a expression like product of \documentclass{12 pt}{article} \begin{document} \begin{multline} ...
2
votes
1answer
42 views

Two labeled equations on the same line with labels lining up vertically

I'm using the following LaTeX code within the amsmath environment in LaTeX (MiKTeX 2.9 and TeXnicCenter under Windows): Let $f$ represent the resulting number of such two-step cycles that operate per ...
2
votes
1answer
58 views

Which one is recommended to split, continue and align a long equation?

In my investigation, the outputs are identical as follows. Version 1: Using aligned. \begin{align*} \framebox[6cm]{Top LHS}\\ \framebox[5cm]{Middle LHS}\\ \framebox[4cm]{Bottom LHS} &= \! ...
8
votes
2answers
599 views

Difference between (split, align) and (gather, aligned)?

Here is an MWE which shows that they seem to do the same thing. Is there any reason to prefer one over the other for typesetting groups of equations? I would prefer the align syntax because it allows ...
2
votes
1answer
44 views

Using \limits in a customized \overset for superscript together with \sideset for subscript

I am trying to create a notation for a certain space. I am using a customized \overset in mrf's answer in this thread to suppress the extra vertical space. I still want the subscript on the right ...
0
votes
0answers
85 views

why wont this \therefore command work? [closed]

I want to type this but I am getting an error message \begin{align} % (15) &a_n = \int_{0}^{1} (X - 1) \sin (n \pi X) \mathrm{dx} = \frac{-1}{n \pi} \\\\ \nonumber \therefore ~~~~ &V(X,T) ...
0
votes
1answer
54 views

Choose which rows in multi-line equation to assign numbers to [duplicate]

If i do: \begin{align} a = b \\ b = c \\ c = d \\ \end{align} The output will be like: (1) a = b (2) b = c (3) c = d If I use algin* instead. No row will be ...
4
votes
1answer
71 views

Making large substack more readable?

I have the following code: \[\mathcal{I}(A,B) = \inf_{\substack{h : M\times I\rightarrow M\\ h(\cdot,t) \;homeomorphism\\ h(x,0) = ...
6
votes
1answer
118 views

amsmath “\substack”-command in section title

I do use the \substack-command in text for creating a small (2,1)-Vector. Unfortunately it does not work in the title of a section. Here a minimal example, which does not work: ...
2
votes
1answer
52 views

How to automatically scale `\mid` within delimiters

\mid within \left and \right delimiters is expected to be automatically scaled, but today I noticed such behavior: L = \sup \left\{ \sum_{x \in F} a(x) \mid F \subset X,\, |F| < \infty \right\}, ...
3
votes
4answers
82 views

How to create subset with sim symbol

I've been trying to typeset as an operator the symbol ⫇ (\subset on top a \sim), but the following solutions have not been helpful ⫇ does not seem to be listed in symbols-a4.pdf, so detexify does ...

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