{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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12
votes
2answers
977 views

Custom pagebreak in align equation

I got the following problem: Right now I am checking my equations, which are usually written in align. This looks great in most of the cases, but sometimes the pagebreaks are weird, ie there is a lot ...
12
votes
2answers
3k views

Increase spacing in split environment

I'm writing long equations with the split environment: \begin{equation} \begin{split} ... \\ ... \\ ... \end{split} \end{equation} The problem is that the single lines are a bit high, and there is ...
12
votes
1answer
7k views

Double square brackets

In many equation editors (e.g. MS Word 2007 and Daum Equation Editor), there's a double square bracket. Is there a TeX equivalent for [[, ((, )), and ]]?
12
votes
1answer
234 views

Extra space added after equation when it is coloured

For some reason space is added after my equation when I colour it. This does not happen if the colour is added to text. Is there a simple way to prevent this from happening, like a global setting (I ...
12
votes
2answers
3k views

what's a replacement for \lefteqn in the align environment?

I would like to avoid the use of eqnarray. I would like to use the align environment instead. However, I have an equation that I specify currently the following way: \begin{eqnarray} ...
12
votes
1answer
709 views

Center over-long equations between both margins

I understand the reasoning behind the fairly narrow textwidth in a default LaTeX article. 60-80 characters per line and all that. However, I am preparing a document that features many lengthy ...
12
votes
3answers
524 views

Displaymath environment that can align equations and squeezes math

I have a long equation to align. Without squeezing the math, it is just barely longer than \textwidth. However, the align environment doesn't squeeze the math at all, which results in a badbox. ...
12
votes
1answer
171 views

First reference to equation underlined

In these days I'm writing at my Bachelor's Thesis and I've got a new problem. I have to underline the first reference to figures, tables and equations. By searching in the Internet I've already found ...
11
votes
3answers
19k views

Two sets of aligned equations in two columns?

Say I have a set of equations: (1) \begin{align} wx&=u\\ wy&=v\\ w&=10 \end{align} (2) \begin{align} x&=u/w\\ y&=v/w\\ \end{align} How can I do the following: put (1) and ...
11
votes
3answers
345 views

Alignment in math equations

How can I align my equations as in the image below? I know \begin{equation} \begin{split} x_1'(t) &= x_1(t)+2 x_2(t) \\ x_2'(t) &= 3 x_1(t) \end{split} ...
11
votes
4answers
295 views

Curve Integral typeset problem

I would like typeset equation on the figure below: I've tried code: \begin{equation}\label{fyz:eq_fey_curveint1} \Psi(2)-\Psi(1) = \begin{array}{l} ...
11
votes
3answers
1k views

Too long equation without splitting

I am writing an equaition which is too long-wide. I don't want it to split. I tried to change the fontsize within the equation enviroment but it didn't work. I am using \documentclass[11pt]{article} ...
11
votes
3answers
3k views

Why doesn't lineno number a paragraph when it is followed by an “align” equation environment without a space?

lineno skips the line numbering in this case: \documentclass[12pt]{article} \usepackage{amsmath} \usepackage{lineno} \linenumbers \begin{document} Lorem ipsum dolor sit amet, consectetur adipiscing ...
11
votes
1answer
374 views

Text in an equation

This is best explained by example. Suppose I have the following: \[ \begin{align*} C_3 \rightarrow 6 automorphisms\\ C_4 \rightarrow 8 automorphisms\\ C_5 \rightarrow 10 automorphisms ...
11
votes
4answers
5k views

abovedisplayskip vs abovedisplayshortskip

What is the difference between these two? http://en.wikibooks.org/wiki/TeX/abovedisplayskip http://en.wikibooks.org/wiki/TeX/abovedisplayshortskip I don't know why, but it seems to work unusually. ...
11
votes
3answers
3k views

Big forward slash in math

I have a equation in from of a=VERYBIGSTUFF / VERYBIGSTUFF And I would like to have a "verybig" forward slash in the middle of them. I dont like \frac mode, as I would like to have them ...
11
votes
1answer
2k views

Blank lines in align environment

Is there a way to insert a blank line between two equations in align environment? From what I understand a blank line is interpreted as \par and \par is not allowed in align. Can I disable this ...
11
votes
1answer
220 views

Strip section number from equation range reference

I am trying to adjust equation range numbering from (1.10)-(1.15) to (1.10-15). By calling this in the preamble: \crefrangelabelformat{equation}{(#3#1#4-#5#2#6)} and then this in the document: ...
11
votes
2answers
704 views

Which is the preferred command for equations in LaTeX?

While browsing some of the older questions I learned that I should not use $$. I also learned that I blamed LaTeX for obscure error messages that can be prevented by using \( and \). I started to ...
11
votes
1answer
124 views

Aligning two fractions in the split environment

I have two equations: \begin{equation} \begin{split} d_1 & =\frac{aaaaaaaaaa}{b}\\ d_2 & =\frac{aaaaaa}{b} \end{split} \end{equation} I want the fraction lines to ...
11
votes
2answers
4k views

Change appearance of equation numbers locally

In the MWE below, I would like to have the equation numbers in the Chapter "Appendix" (but only there!) being displayed as follows: (A.1), (A.2), (A.3) ... \documentclass{book} ...
11
votes
1answer
17k views

Multiline equation without number

I am trying to have a multiline equation without any numbering, even not in the last one. \begin{align} a = x \nonumber \\ b = y \end{align} However, this is producing a line number in the last ...
11
votes
1answer
2k views

Referencing subequations with cleveref

I try to refer to the parent number of subequations with \cref from the cleveref package. However, I would like to change the output "eq. (...)" into "eqs. (...)" when I refer to parent numbers ...
11
votes
1answer
1k views

Describing steps in an equation

I am always describing the steps on how a formula is achieved or describing the underlying Mathematical principles taken to solve a problem in the align environment. But the descriptions are not ...
11
votes
1answer
251 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
2answers
198 views

How do I make “gather” object, place its self in the text, the same way as an equation object?

Assuming the amsmath package is installed. I found a difference between the way that an equation object and a gather object is embedded within the text. If an equation is beneath a line of text that ...
11
votes
1answer
2k views

Multiline \text in an equation

There are a number of possibilities to have multiline equations, but I am looking for multiline \text{...} elements. For example: \documentclass{article} \usepackage{amsmath} \begin{document} ...
11
votes
2answers
342 views

Equation number enclosing parentheses misplaced with Polyglossia+Hebrew+amsmath

I am compiling the following MWE using XeLatex within TeXnicCenter and get a garbled equation number: \documentclass{article} \usepackage{amsmath} \usepackage{polyglossia} \setmainlanguage{hebrew} ...
11
votes
1answer
192 views

Adding arrows with values over an expression

I'm trying to add arrows to math expressions (especially within limits) to note that there's a value assigned to certain term when solving a limit. I've come across the cancel package and its command ...
11
votes
1answer
157 views

Split up several equations into smaller ones?

I've tried to search for it, but I couldn't seem to find an answer to my question, so here goes. Let's say I'm writing a report of some sort. I'm up 50 pages or so, and at least 100 equations. Then, ...
10
votes
3answers
341 views

“Escaping” Linux kernel version in latex

I'm trying to include a kernel version info (i.e. \texttt{2.6.40.4-5.fc15.x86_64}) in my LaTeX document. However, LaTeX keeps trying to put it into "math-text" ("Missing $ inserted" and so on). How ...
10
votes
4answers
4k 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.
10
votes
5answers
2k views

How to align the equal signs in this equation such that the first line and last 2 lines align

so I have an equation below. My latex code for it is: \begin{align*} CoJPoD_{ \{I_1, \cdots, I_{k-1}, I_{k+1}, \cdots, I_{n}\} | I_{k} } = CoJPoD_{ \{system \backslash I_{k}\} | I_k} \\ = ...
10
votes
3answers
377 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} ...
10
votes
3answers
28k views

How can I decrease spaces between equations?

\documentclass[12pt,a4paper]{mwrep} \renewcommand\baselinestretch{1.5} \begin{document} \chapter{Test} Text text text text text text text text text text \begin{equation} 1 + 2 + 3 = 6 ...
10
votes
4answers
345 views

Splitting a formula

What is the best way to split an overlong formula such as the following one to multiple lines: \documentclass{scrartcl} \usepackage{amsmath} \begin{document} \begin{eqnarray} P2‘‘ &=& ...
10
votes
3answers
1k views

How can I number a few equations together

i would like to write few equations, but all the equations will get only once numbered and in the middle (right side) of the equations. e.q. if i write 3 equations, the number will be to the right of ...
10
votes
3answers
3k views

To write this norm equation better?

I have this norm \documentclass{article} \usepackage{amsmath} \begin{document} \begin{equation} \lVert f \rVert_{L_{2}(\Omega)} = \text{sup}_{ \begin{cases} v \in L_{2}(\Omega) \\ v \not= 0 ...
10
votes
4answers
7k views

How to show two groups of equations side by side: one implies the other?

I would like to show a bunch of equations can imply another bunch of equations, with double right arrow in between. Here are two trials of mine: one is to use another level of math mode to enclose the ...
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 ...
10
votes
2answers
1k views

Labelled in-line equation

I searched the internet but I cant find a solution for my problem. I want a numbered and labelled equation inside the text.Something like: The equation a+1=b (2.1) does ... The equation a+1=b ...
10
votes
3answers
775 views

Writing an equation with the units positioned off right

Okay so I have a have a lot of equations in the document I am writing and I am trying to display the units of an equation off to the right. I was wondering how I can achieve this? Right now, all I ...
10
votes
2answers
2k views

Equations and Double Spacing

If a document (in any class) is double spaced, how do you redefine the spacing around centered equations as if there was single spacing? Whenever I use double spacing, I feel like the space before and ...
10
votes
3answers
7k views

Uncover a multiline equation with beamer

I am using the beamer class for a presentation and amsmath package for the math mode. If I uncover the formula in the following way, the formula jumps between slides, which is not intended. ...
10
votes
2answers
290 views

Tikz figure inside equation with braces that are too large

I'm currently trying to include a tree, visualized using Tikz-qtree and Tikz into an equation. The problem I'm having is that the curly braces are way too large. The code I'm using at the moment is: ...
10
votes
1answer
256 views

How can I add circles and arrows in linear equation systems?

How can I write a linear equation system that uses circles and arrows to indicate what should be added on each line. This is what I have so far: $S = \begin{cases} x_1+2x_2 - 2x_3 = 1 \\ ...
10
votes
1answer
146 views

Is this a known issue with the centering of eqnarray?

In this example, \documentclass{article} \begin{document} \begin{eqnarray*} A&=&B,\\ C&=&D,\\ E&=&F, \end{eqnarray*} \begin{eqnarray*} A&=&\mathord{B,}\\ ...
10
votes
1answer
1k views

How to organize labels when there are too many equations?

I'm writing a moderately long text using LaTeX, and it's great to be able to organize chapters, sections, appendices, and everything else almost automatically. One thing has been bothering me though. ...
10
votes
1answer
390 views

Chemical equation with “●” symbol

How to write this equation (the ● is like the +). I'm using {chemist} package for ordinary equations. ROO● + AH → ROOH + A●
10
votes
2answers
816 views

Custom alignment of columns in align environment

I need to typeset two columns of equations, each row typeset with an equation number to the right as with an ordinary equation. The first column must be centered, and the second column must be ...