{equations} is about the various environments to typeset displaystyle mathematics, e.g. equation and {align}. For general questions about mathematical typesetting use {math-mode}. Both tags are possible on the same question.

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7
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2answers
516 views

How do I format this equation in LaTeX?

I want to write this equation in Latex. Sorry, I don't know what's the specific name of this kind of equation. I know title is so general.
6
votes
2answers
250 views

LaTex Error Help- Math Related

I'm trying to make an equation array \begin{eqnarray*} f^{(a)} (0) &=& \frac{a!}{2 \pi i} \oint_{ |z| = \frac{\varepsilon}{r}} \frac{f(z)}{(z)^{a+1}} dz &=& &=& ...
6
votes
1answer
347 views

Equation tag in twoside-mode outer

At the moment I thinking about the following think. When I use the twoside mode to write a book I want to print the number of the equation outer. I can modify it manually with these two commands: ...
5
votes
2answers
133 views

How can I vertically align the numerators of two fractions?

I am writing the following formula: % arara: lualatex \documentclass{article} \usepackage{mathtools} \usepackage{unicode-math} \begin{document} ...
5
votes
2answers
694 views

Highlight an equation within an align environment with color option

I'd really like to do exactly what's being asked for in this question: Highlight an equation within an align environment, but with the ability to change the color when I call it, so that I could have ...
4
votes
3answers
3k views

amsmath - multiple labels in one equation

I would like to use multiple labels in the same equation when using amsmath. Basic latex already has this feature, but not amsmath, which seems to manipulate labels in complicated ways. Is it possible ...
4
votes
2answers
801 views

How to make equations, figures and theorems use the same numbering scheme

It was asked a while ago how to make equation use the same counter as a theorem for example and one solution was to make the theorem counter use the equation instead by using ...
3
votes
1answer
138 views

How to put a text label *before* an equation?

currently I have an optimization problem defined in {equation} environment: I want to add a label (P) before equation (6). Currently, I had to use the first line "Optimization problem (P)" as a ...
3
votes
2answers
329 views

Write this equation

I want to write this equation in this way down but I have been unsuccessful. How can I improve this codes in order to get the equation below? \[ DeltaC{t} = \left\{ \begin{array}{ll} -1.40- ...
3
votes
1answer
77 views

To have nice tabbed text next to equations?

I want I have at the moment by \documentclass{article} \usepackage{amsmath} \begin{document} \begin{subequations} \begin{equation} \omega_c = \sqrt{\omega_{0}^{2} - \mu^{2}}, \mu < ...
3
votes
1answer
157 views

Align all equal signs in the document

Is there a way to align all the equal signs in all equations all over the document? I write a theses (scrbook) and like all equal signs to line up. At least in a chapter if not possible for the whole ...
3
votes
1answer
3k views

Problem putting matrix operations in an equation [duplicate]

Possible Duplicate: Errors in matrix equation? I'm trying to use official equation container for the first time, and it's giving me some trouble. I have this equation of a simple matrix ...
3
votes
3answers
902 views

How to vertically center `\begin{equation}…\end{equation}` in a table cell?

How to vertically center \begin{equation}...\end{equation} in a table cell? Minimal Code (I cannot minimize anymore) \documentclass{article} \usepackage{array,longtable,calc,amsmath} ...
2
votes
1answer
120 views

Numbering equations within dynblocks environment

I'm trying to number an equation inside an environment created for customed blocks with equations like those contained in how to adjust the latex beamer block width to the size of its content?. But I ...
2
votes
1answer
536 views

why mathtools does not work for showing only equations which are referred to in the text?

I am using mathtools in the following way: \usepackage{mathtools} \mathtoolsset{showonlyrefs,showmanualtags} Then, to refer to equations I use \refeq{equation}. What happens is that there is a ...
1
vote
1answer
155 views

Two columns of equations, aligned and just one number per column

I'm writing a two-column document, and I want to display two sets of large equations floating at the top. Each equation set should be aligned within the same column, and only the two top equations ...
13
votes
5answers
586 views

How to split a long formula and make it beautiful?

My method: \documentclass[UTF8]{ctexart} \usepackage{amsmath} \usepackage{amssymb} \usepackage{graphicx} \usepackage{epstopdf} \usepackage{inputenc} \begin{document} \begin{equation} \begin{split} ...
19
votes
2answers
1k views

Colored underbraces for annotating equations

I am trying to implement my previous Powerpoint presentation in beamer. I have a figure like I want to create something like this in beamer. I wrote a equation as follows but I couldn't write the ...
16
votes
1answer
2k views

Aligned equations inside of TikZ node.

How can I create a tree node with an aligned math equations inside? \begin{align} \end{align} doesn't work \begin{minipage}{100} \begin{align} ... \end{align} \end{minipage} Gives a lot ...
15
votes
3answers
782 views

Guidelines for typesetting fractions

I realize that this question is to some extent subjective. However, I suspect that there are some common standards regarding how fractions ought to be typeset in mathematics. The guide Mathematical ...
5
votes
1answer
557 views

How to draw slope fields with all the possible solution curves in latex

Sorry, I have no code to submit, mostly because I have no idea how to do this. I want to type up my homework (I can do the homework by hand) and I am looking for a simple method that I can use ...
40
votes
1answer
4k views

Breaking equations with breqn

I am new to using the breqn package. It looks good, but I get an odd behaviour when an equation can almost fit in the page but not quite: the alignment gets completely wrong. Is there a way to fix ...
16
votes
5answers
587 views

Giving an equation between \[ \]'s a number

I usually use \[ ... \] to typeset equations in latex and sometimes I come back and realize that I want to have an equation number and label. I have been coming back and editing it to \begin{equation} ...
16
votes
2answers
11k views

Custom equations' names

Do you know ho can i call a reference to an equation using \ref or \eqref and obtain (name of the equation) instead of the standard counter? Thanks!
14
votes
1answer
2k views

Is there a standard way to refer to a range of equations?

I have occasionally wanted to refer to a range of equations in my document. So far, I've been using Equations~\eqref{firstEquation}~--~\eqref{lastEquation}, which produces something like "Equations ...
12
votes
2answers
593 views

\mathrm{} or \mbox{}? What is the convention when writing a equation?

When writing a equation, sometimes we need write letters non-italic. For example, let A be a matrix and its transpose should be A^{\mathrm{T}} instead of A^T. In addition, if a letter does not ...
12
votes
5answers
1k views

Which equations should be numbered?

Is the best practice to number all equations, or just those that will be referred to?
11
votes
1answer
228 views

Writing Notes, want my equations organized at the end of document

I'm writing up my textbook notes in LateX. As I am writing paragraphs, I am inserting equations while I'm writing. I want to somehow display all of my numbered equations at the end of my document ...
11
votes
4answers
4k views

Aligning plain `align` and `cases`?

The cases environment works very well for enumerating cases within a large left bracket. I'd like to be able to combine it with the align environment so that equals-signs and conditions also line up: ...
8
votes
1answer
399 views

Automated generation of equation key

I am looking for a way to automatically create the legend for an equation (let's say embedded in the align environment). What I'm currently using is a semi automated to fully manual way. Let me ...
8
votes
1answer
241 views

How to improve the looks of a fraction?

We may notice that the numerator and denominator in the following fraction are not aligned. And, to me it does not look good. How to align the numerator and denominator? \documentclass{article} ...
8
votes
4answers
2k views

Coding an equation with description

I want to code this equation in LaTeX: I'd like to know how to code the equation and the description below it with a reference as well.
7
votes
3answers
655 views

Write more beautiful math equations, like a professional book

I want to write math equations more "beautiful". My equations are shown as follows: The vector looks ugly and disproportionate. And I like that they look it this way: The vector looks ...
7
votes
1answer
218 views

Highlight referenced equation number

I have to give a talk, and I am using a LaTeX paper that I will write onto the blackboard. However, it is quite annoying to write all equation numbers on the blackboard, but I do want to have them all ...
4
votes
2answers
539 views

Adding labels to a formula

I have a diagram like this, explaining a formula: \documentclass{article} \usepackage{stackrel} \begin{document} $\stackrel[e+f+g+h^i]{a^b}{c d}$ \end{document} For this example, I have removed ...
20
votes
1answer
686 views

Highlight equations in a typographically correct manner

I am presenting a model composed of a dozens of equations, some of them requiring a somewhat lengthy derivation. The equation that continue the actual model appears progressively along the derivation ...
12
votes
2answers
10k views

Use of \small in the equation environment

My equations are a little too large for the normal eqnarray environment, so I've been using the \small delimiters around the \begin{eqnarray} ... \end{eqnarray}. Unfortunately, this causes the the ...
9
votes
2answers
234 views

Label variables of equation using tikz without using itemize

I'm trying to use tikz to label the variables of an equation. I know of a similar question (Itemized Equation) but the answer uses itemize to label the variables. I would like to do something similar ...
7
votes
1answer
223 views

Image equation to TeX

Is there a tool for exporting equation images to TeX? Probably something related to OCR. I have a lot of image-equations in a word document that I'd like to convert to TeX. Note that the equations ...
5
votes
3answers
2k views

An equation skip problem — amsmath package and \above/belowdisplayskip

I have been puzzled by a problem about math equation skip for days. I set the \lineskiplimit, \lineskip, \abovedisplayskip and others length macros before and after equations all to zero, but there ...
24
votes
10answers
1k views

Best typesetting of formula

Consider the following example. \documentclass{article} \usepackage{amsmath} \newcommand*\mathsetfont{\mathbf} \newcommand*\DeclareMathSet[1]{% \expandafter\newcommand\csname ...
24
votes
3answers
859 views

How to avoid widow lines after displayed equations

If a displayed equation is close to the bottom of the page, TeX likes to insert a page break even if the current paragraph contains only one more line after the equation, as e.g. in ... it follows ...
21
votes
1answer
352 views

Unicode in the equations: pros and cons

Is there any pros and cons for using of Unicode (and vice versa) in LaTeX equations? Consider two examples: \lim_{h→0}∫_{x_0}^{x_0 + h}\frac{f(t)}{h} = f(x_0) x_0 ⇔ ∀ 𝜀 > 0, ∃ 𝛿 > ...
12
votes
3answers
760 views

How do I obtain multline-type alignment within a group of equations?

I want to achieve something like the following (for now achieved using Microsoft Paint): That is, I want to group a number of multi-line equations within a single equation-type environment (i.e. ...
8
votes
2answers
5k views

Mixed (sub)equation numbering within an array

I am trying to use subequations inside an array environment. Specifically, I am trying to create an array that has both regular numbered equations and subequations. I am looking to create an array ...
7
votes
2answers
832 views

How to align terms in alignat environment

These are my math equations. To enhance readability, I'd like the third column to be aligned around the + sign; that is, I wish to place some horizontal blank in front of $n\mathbf{A}_0$ (not ...
7
votes
3answers
292 views

Highlight equations by temporary changing the formatting of their number

I am writing a long paper having 100+ equations, and want to highlight a few key equations. Since the journal won't let me use boxes around equations, I am trying to have their label being typeset ...
7
votes
2answers
3k views

How to place and number 3 short equations in one line?

I have 3 short equations which consume much vertical space, if each one is typeset in a separate line. How can I typeset them in one line in a "mathematically correct" way? I do not necessarily need ...
6
votes
2answers
4k views

How can I box multiple aligned equations?

This question is two-fold. In my document, I currently have boxes around single equations like so: \documentclass[11pt]{article} \usepackage{amsmath} \begin{document} \begin{equation} ...
5
votes
1answer
217 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 ...