{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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Equation problems

So I am trying to insert an equation. The output seems to be correct, but I get some error messages. \begin{equation} \centering \label{eg:homogeneity2} \begin{align} H(C) = - ...
6
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2answers
55 views

Wrong vertical space in theorem environment closed by an equation

It happens that LaTeX, to fill a page vertically, adds extra spaces around equation environments (and other vertical spaces). Now suppose I have a theorem environment (using amsthm) which ends with an ...
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3answers
64 views

Putting a header above the cases in an equation

This question is best illustrated by an example. Consider the following code Further we can show that \begin{equation*} P_{v}(T) = ...
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2answers
51 views

How to adjust the blank space between the top of the left curly brace and the contents?

I want to type a system of equations delimited by the left curly brace. And I tried using the \left{ with aligned, and cases, and array, and numcases. But there are some difference between the results ...
3
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1answer
42 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 ...
2
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4answers
95 views

Putting row of dots in an equation

Is it possible create a system of equations that will look like this: aX(x_0)+bX(x_0)+cX(x_0)=A dX(x_1)+eX(x_1)+fX(x_1)=B ......................... gX(x_n)+hX(x_n)+iX(x_n)=B I tried with this: ...
3
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0answers
77 views

Is it possible to reprint an equation without actually rewriting it? [duplicate]

I have an equation like: \begin{equation} \label{whatever} x+y=1 \end{equation} I want to write it again, keeping the same number. I know I could do the following: \begin{equation} x+y=1 ...
3
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1answer
55 views

Equation and image in a row

I have example (defined as \newtheorem{example}{Example}[section]) and inside I have four-level equation of same size as an image ABC.png that I want to put on the right from the equation. But it is ...
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1answer
75 views

point-and-click open source javascript equation editor for latex?

Does anyone have experience with a good open source equation editor for online use? I'm not interested in WYSIWYG (What are the Open source WYSIWYG Independent Web Equation Editors available on ...
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3answers
75 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 ...
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2answers
100 views

Missing final brackets (in one equation { and in other - ]) in the equations

This is my first question on tex.stackexchange, so the formatting will be terrible. I've got a problem with three lengthy equations - the closing brackets, in all three formulas, are not displayed. ...
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1answer
62 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 ...
8
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1answer
143 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 ...
2
votes
2answers
55 views

How to label text with equation number?

I'm trying to put equation numbers next to text as if said text was an equation. If I use \text{} in an align* environment, it typesets the text right-aligned and the whole environment centered, but ...
1
vote
1answer
47 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 ...
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2answers
85 views

Why LaTex only prints the first page of a document?

I'm writing my first document with Tex and encountered problem(s) with it. At the moment I can only get the first page printed out :/ I'd appreciate enormously if anyone could help or give hints for ...
1
vote
1answer
70 views

Compiler error: “Missing $ inserted” [closed]

I have got the following equation in Latex. During compilation, the compiler complains about "Missing $ inserted". Unfortunately I am not able to find any error. Any ideas? \begin{dmath} ...
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0answers
50 views

Numbering all equations [duplicate]

How can I number the equations of a document all at once? I've tried to find an option in LyX but I didn't find any.
3
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1answer
76 views

Discretionary equation breaking at a particular symbol

I have long equations that I want LaTeX to break automatically. After some extensive searching I have been unable to work out how to achieve this effect. I have breqn in my package list, however it ...
3
votes
3answers
88 views

How to write ':' and '_' in equation? [closed]

\begin{equation} \label{eq:policy} \(\text{[DIP:10.1.0.17] $\rightarrow$ F $\rightarrow$ L}\) \end{equation} Gives me many errors like ! Missing $ inserted and Bad math environment delimiter. How do ...
12
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2answers
79 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
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0answers
97 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 ...
2
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1answer
121 views

How to number an inline-math equation?

I want to add an equation number in a formula, but I've got an error: "You can't use `\eqno' in math mode.". This is my code: $e_{33} = 0 \eqno(4.4)$ How I can fix it?
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1answer
54 views

How to cross reference with \renewcommand{\theequation}?

I change the default numbering of the equation. Instead of default "1" on the right side I put "Eq. (1)". The number inside the parentesis automatically changes. But in the cross reference i need ...
8
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1answer
95 views

Change the size of only a part/subset of a single equation

For example, I'd like to do: $Q^{r<1}$ but with the r<1 having a much smaller font size than the Q. Of course r<1 will naturally have a smaller size since it is a superscript, but I want ...
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1answer
74 views

Prevent multiple equation numbers when using \allowdisplaybreak with align

I have a very long equation of the following format \begingroup \allowdisplaybreaks \begin{align} a &= very long expression here\\ + & another long expression here\\ + & another long ...
4
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2answers
32 views

how to align texts in equation cases

I need to make an equation case with text following it. That text should be displayed in the middle of the two cases. This is my code: \begin{eqnarray}\label{eq13} a_k = \begin{cases} 1 & ...
6
votes
3answers
101 views

How to align 'parts' of these equations?

I have a set of equations given by the following code: \begin{equation} \label{eqn:eraserStart} \max \, d \end{equation} \begin{equation} a_t \in \{0,1\} \, \forall t \in T \end{equation} ...
5
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1answer
47 views

Edit space for overbraces in equation

I would like to use \overbraces and \underbraces in my equation. However, when I make the text for \overbraces too long, the \overbrace doesn't contain the correct part. ...
1
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1answer
73 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 ...
0
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3answers
70 views

Bullet and equations or itemize and equation

I am using the following command. \documentclass{12 pt}{article} \begin{document} $\bullet$ $A = B$ \end{document} Here, I need to show the both bullet and equation by the number like ...
3
votes
2answers
58 views

How to wrap a long equation in Latex

I have a very big equation and using split or multiline is not helping. How do i wrap it and how do i make sure thatRHS of the eqn is always on the right side of equal to ('=') even when line is ...
5
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1answer
103 views

Typesetting of volume integral

This question has been bugging me for a long time: How do I properly typeset volume integrals? I would like to use the convention often used in Physics: d^3x=dV and \int dx f(x) instead of \int f(x) ...
4
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2answers
59 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 ...
0
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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 ...
4
votes
1answer
58 views

Equation over picture (overpic)

Is there a way to place a mathematical equation over a picture? I am using the overpic package and \put command, but it doesn't work (\usemath, \begin{equation}...\end{equation}). \begin{figure}[h!] ...
13
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5answers
240 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} ...
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0answers
31 views

Is there an opposite to \nonumber? [duplicate]

Usually I set equations using the align environment together with \nonumber for those few lines that shall not have a number, or the align* environment if no equation shall be numbered. But what if ...
5
votes
1answer
58 views

`\hfill`-like spacing in math mode without using `align`

In question 83509, a way of getting \hfill-like behaviour in the align environment is described, but for my purposes, I need one that works in the equation environment. (I want to display some ...
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2answers
51 views

Spacing between a special character and text

Why do I get output like this ? Why is the alignment varying if I embed the special characters like lambda and eta ? code sample 1: \begin{gather} \label{eq:Highest spatial frequency} \frac{2 ...
2
votes
2answers
47 views

Unnumbered line inside align

Basically, I have two equations that I wanted to use align to number, but I also wanted to put the word 'and' in between the lines. Here's what I have so far \begin{document} \usepackage{amsmath} ...
2
votes
1answer
42 views

Pack equations a little denser (setstrech for an equation?)

I have an equation which is a little longer than the page margin. I don't want to split it, but I was wondering if it is possible to get it a little more dense (something like setstretch for an ...
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0answers
46 views

Cases equation problem - ! Missing { inserted [closed]

I am trying to compile this equation \beta\_t^i= \begin{cases} \overline{\beta}-i\cdot\sigma\_{\beta} & 0\leq i\leq 4\\ 0.0 & 5\leq i\leq7 \end{cases} and I am still ...
10
votes
5answers
278 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} \\ = ...
3
votes
1answer
49 views

Center displayed, boxed equation within environment

I would like to center, with respect to the page margins, a displayed equation that is boxed and is within either an enumerate or itemize environment. Below is an example of what I have. Notice that ...
2
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0answers
65 views

List of equations, tocloft package, giving me error

I know this question was answered earlier at: http://www.latex-community.org/forum/viewtopic.php?f=5&t=428, but I am having problem using the tocloft library with my schools thesis template. When ...
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0answers
56 views

How do I explicitly print the labels for a given equation?

I am using mathtools, only refeq equations get actually a number. However, there are several equations which I want to have the equation numbering appear on the right, or more accurately, decide on ...
2
votes
2answers
63 views

Split equation with each element being exactly below each other

I have an estimated equation with both coefficients and t-statistics. It's a multiline equation and would like to put the t-statistics right below the coefficient estimates Currently my code looks ...
6
votes
2answers
94 views

Equations and defining equation variables

I have a main equation that should be numbered and now I want to define the variables of the equations which may contain another set of equations. For example please have a look; code: \begin{align} ...
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 ...

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