Tagged Questions

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

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0
votes
1answer
103 views

twocolumn article cases alignment issues

I use the following option twocolumn \documentclass[11pt, twocolumn]{article} Images and almost everything works nice. However I face an issue with the mathmode cases If my text is too long it ...
27
votes
3answers
2k views

How are big operators defined?

I would like to create a new "big operator", by which I mean something like the Σ character used for summations. I know about the \DeclareMathOperator* command, which creates an operator whose ...
2
votes
1answer
243 views

Backreferences for equations

I'd like to put a list of pages, hyperlinked to the position of the \eqref or \cref that point to it in the margin of each \labeled equation, like backref does for bibliographies and \cite. Both this ...
1
vote
0answers
53 views

\lesssim (and some others) not working [duplicate]

I'm writing a latex document and trying to use \lesssim (listed for example in here: http://en.wikipedia.org/wiki/Help:Displaying_a_formula#Relations ) in the text like this: $a \lesssim b$. However, ...
1
vote
0answers
156 views

Name of length for equation number indent if [leqno] is set [closed]

I got a weird phenomenon as shown in the picture below. The equation numbering is indented. I tried the same thing in a fresh document and it produces the result I am looking for. For the other ...
6
votes
1answer
88 views

How to refer to the number of an item in an enumerate environment inside a theorem

I have something that looks like this: \usepackage{amsmath} \begin{document} \begin{thm} The following are true: \begin{enumerate} \item \label{foo} Foo \item \label{bar} Bar \item \label{baz} Baz ...
7
votes
1answer
165 views

Ignoring specific ampersand formatting on a specific line of an align block

I want to typeset a number of equations with some alignment constraints, but I want to partially ignore them on certain lines. An example formatted text might look like the following when it's ...
7
votes
1answer
174 views

How to remove the unwanted space on the left side of the following gather*?

\documentclass[preview,border=12pt,varwidth]{standalone} \usepackage{amsmath} \begin{document} \abovedisplayskip=0pt\relax \begin{gather*} 6x^2-30x+36=0\\ 6(x^2-5x+6)=0\\ 6(x-2)(x-3)=0\\ x-2=0 \quad ...
4
votes
1answer
339 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 ...
2
votes
1answer
69 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? The beginning of my tex file ...
12
votes
2answers
3k 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 ...
4
votes
5answers
406 views

Right 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
502 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 ...
5
votes
2answers
204 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*} ...
3
votes
2answers
10k 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 ...
7
votes
1answer
157 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 ...
5
votes
1answer
300 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
51 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
200 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 ...
2
votes
0answers
210 views

LaTeX is not compiling consistently [closed]

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 ...
9
votes
3answers
414 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? ...
2
votes
3answers
149 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 ...
11
votes
4answers
404 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 ...
2
votes
2answers
1k 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 ...
3
votes
1answer
2k 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 ...
4
votes
2answers
141 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 ...
9
votes
3answers
7k 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 ...
6
votes
1answer
105 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 ...
14
votes
5answers
2k 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} ...
3
votes
1answer
108 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
169 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
811 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
267 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
113 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 ...
1
vote
1answer
216 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
242 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} ...
5
votes
3answers
2k 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 ...
10
votes
2answers
1k 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 ...
3
votes
1answer
231 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
187 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} &= \! ...
2
votes
1answer
236 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
1answer
86 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
2k 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) = ...
3
votes
4answers
348 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 ...
4
votes
1answer
463 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\}, ...
11
votes
4answers
184 views

Aligning the long equations

I have read all of the different solutions for fitting long formulas in a page, yet I am still not satisfied with the output I get. The formulas are right aligned which does not look good. Would you ...
7
votes
1answer
1k views

Add Overbrace to describe a column of matrix

I want to add some over-braces to a matrix to get the following output: However, this this what I managed to get: I don't know how to get the neuron 1 and neuron 2 headings...I was thinking of ...
4
votes
1answer
1k views

Remove unnecessary horizontal space from amsmath align between two &

How do you remove unnecessary horizontal space in an amsmath align environment between two &? Consider: \documentclass{article} \usepackage{amsmath} \begin{document} Version 1: \begin{align*} ...
2
votes
1answer
90 views

Equation number displaying problem

I used \eqref to reference two different equations (\eqref{eq1} and \eqref{eq2}) but it displays the same strange shape as shown below in the image. The equation numbers are 1 & 2, any help?
8
votes
1answer
1k views

What is the advantage of using the equation environment in latex?

My flatmate uses \flalign for all of his equations in LaTeX and after thinking about it, it makes sense. Is the \equation environment not just more restrictive? Is there ever an advantage to using the ...