{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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29
votes
3answers
100k views

Big Parenthesis in an Equation

I have an equation contained inside \[...\], which automatically makes a \sum with sub- and superscripts turn big--so that the summation sign looks awkward inside parenthesis. Any idea how to make ...
4
votes
3answers
175 views

QED - as three letters - to the right of a display equation

What is the best way for me to get "QED"--as the three letters, not the square generated by \qed--flush with the right side of a page on the same line as a display equation? Note - I am intentionally ...
1
vote
0answers
37 views

Strange behaviour of wrapfigure if followed by equation

I have just had some problem with wrapfigure where I used the following code: \documentclass[a4paper, 12pt]{article} \usepackage{wrapfig} % to have text around figures \usepackage{graphicx} ...
7
votes
3answers
4k views

beamer's \only command, equation counter increment does not get retained outside of \only

I've got a problem where I am using beamer's \only command, but within \only, the equation number incrementation doesn't survive. I.e., I'd like to do \only<1>{ \begin{align} equation 1 ...
0
votes
1answer
178 views

\mathbbm in exponent of equation

I am trying to put a blackboard 1 (indicator function; I'm using the bbm package) in the exponent of an equation, something like \begin{align*} f(x) = \mathbbm{1}(x = 1) \\ % works p(x) = ...
3
votes
2answers
93 views

Splitting the equation on two lines

I have the following equation (as you can see I have used split): \begin{equation}\label{testequation} \begin{split} d_{m}^{\phi}\left(A,f\right)=\sqrt[m]{\mid ...
3
votes
2answers
25 views

Multiple lines in equation environment

I have to put an two equations inside one equation environment. I could do it with this piece o code: \begin{equation} \begin{array}{ccl} \nabla \cdot F & = & \left(\frac{\partial}{\partial ...
9
votes
4answers
7k views

side-by-side equations, with equation numbers for each

The align command from amsmath allows me to put two equations side-by-side: \begin{align} x = y && a = b \end{align} Unfortunately for my purposes, this shows both equations under one ...
9
votes
2answers
5k views

Horizontal spacing after equation

I have the following snipped in my LaTeX document: \begin{align} \sum_{j=1}^{m}x_{ij} &= 1 \text{ for } i = 1,2,...,n \sum_{i \in P_k}x_{ij} &\leq 1 \text{ for } j = 1,2,...,m \text{; } ...
3
votes
5answers
178 views

An double arrows between two systems

I'm trying to have 2 equations systems separated by a double arrow, something like this : I'm actually using 3 minipage : the first and the third with and array and the arrow at the ...
5
votes
1answer
63 views

Box or [ around multiple lines inside align

I have the following code \documentclass{article} \usepackage{amsmath} \begin{document} \begin{alignat*}{4} \begin{minipage}[h!]{0\linewidth} \text{Let:} \end{minipage} ...
3
votes
0answers
23 views

Connecting two elements in the equation [duplicate]

Suppose that my equation has six elements and I want to visually connect them into pairs (A with C, B with E and D with F). Is that possible to do? Example: --------- ...
0
votes
2answers
116 views

\begin{equation}: “Display math should end with $$” error?

I'm pretty new to LaTeX, completely new actually, and there is one thing I can't quite understand. I get the error "Display math should end with $$" when writing an equation like this: ...
3
votes
3answers
41 views

aligned environment, align numbers to right

I have an "equation", where I simply want to give some constant values. I'm aligning on the equation symbols, but as the numbers have different amounts of digits, I would also like to align the ...
5
votes
2answers
165 views

equation with arrows

My intention is to create equation which looks similar to one of examples below (I prefer the second one). There should be an arrow from JKL to DEF and GHI and from GHI to DEF. Neither alignment ...
21
votes
6answers
2k views

For formal articles, should a displayed equation be followed by a punctuation to conform to the language grammar ?

For formal articles, should a displayed equation be followed by a punctuation to conform to the language grammar ? For example: The most well-known physics formula is \[E=mc^2.\] %should I put ...
2
votes
0answers
15 views

Error using split within an equation [duplicate]

I am getting multiple errors for using split within an equation. I use this command in a number of other places throughout my LaTeX document, but there is one case in which many errors are given ...
5
votes
2answers
65 views

Use integral or sigma as delimiter?

I'm learning LaTeX as I go to write a proof, and I have this chunk of code: \begin{align} f(x) & = \displaystyle\sum\limits_{n=0}^{\infty} \frac{(-1)^n(x^{2n})\left[1 \cdot 3 \cdot 5 \ldots \cdot ...
3
votes
1answer
81 views

How to improve in-text math expressions with multiple delimiters such asl `(`, `|`?

Consider this equation: first $\lceil (cN-n) |S_{n+1}|\rceil$ points which renders to: Is there a way to improve this, from the perspective of readability? The only improvement I could suggest ...
1
vote
0answers
22 views

LaTeX Printing reference identifier along side reference number

I am wondering if it is possible to turn on (or create) a feature that would cause all reference numbers to be printed with the variable name that defines that reference? For instance: ...
2
votes
1answer
55 views

How to reduce margins inside the equation environment?

do you know a way to reduce margins inside the equation environment to be sure that a very long equation fits in a line (I have already reduced the fontsize of the equation)? Thanks here my code: ...
2
votes
2answers
41 views

How to split very long equation in two pages?

I need to split this equation in two pages. Can you help me? Thanks \documentclass[11 pt,a4paper,oneside,openany, notitlepage]{article} \input epsf \usepackage{amsmath, amssymb, graphics} ...
0
votes
0answers
36 views

Sub and super script in a diffent font [duplicate]

In a equation, I need sub and super script in a differnt font, other equation part as a differnt font, I am Using MiKTeX 2.9 version. How to get these style in the output? supscipt position is ...
4
votes
4answers
158 views

big square parentheses with subscript

what I want to do is: what I have done is: \begin{align} \tag*{(1)} & v_t(\mathrm{\textbf{K}})= \mathbb{E}\left[_{0\leq x_j\leq D_{jt},j \in J} \max_{\mathbf x \in \mathcal J(\mathbf ...
1
vote
2answers
62 views

Equation number on wrong line

Hi my equations produce their numbers on the following line as opposed to the same line. Here's an example \documentclass{article} \usepackage{amsmath} \begin{document} \begin{equation}$$ ...
4
votes
2answers
105 views

How can I make this equation fit on a single line?

I want to make this equation fit on one line. I've tried to use \small, but it doesn't work. What should I do? \begin{equation} 1^{st}integral= \int_{0}^{\infty}{\frac{2 \pi \zeta}{\alpha} ...
7
votes
4answers
204 views

How to type several equations with one vertical line next to them

How can I type the following equation in LaTex:
2
votes
2answers
51 views

Description list for equation's terms

I'm trying to create a custom description environment (using enumitem) so I can describe the terms of an equation. What I want is to define item labels that are defaulted to inline math mode, and also ...
1
vote
1answer
62 views

Putting a number on the right hand side without using the equation or align environment? [closed]

I have a couple of lines which I wish to number and I'm hoping for something like: Text... \alignright{1} or something like that if it exists to produce Text... (1)
4
votes
1answer
109 views

Correct arrow for mathematical limits

I am currently using $$\phi(\varepsilon) \overrightarrow{ \varepsilon \rightarrow 0 }0 $$ for writing down mathematical limits. But I am not very confident with this notation, as the text under the ...
0
votes
1answer
58 views

Equation with \argmin inside table

I want the equation to properly show the argmin tag with variable at the bottom inside a table. In my case it is showing as a subscript. I tried everything but cant get this done. The following is a ...
2
votes
1answer
105 views

$$, \[ \] and equation environment alignment

I'm using scrreprt class and I'm having troubles with different behavior of $$ and \[ \]-written equations and equation environment. The problem is that alignment is not the same: $$ equations are ...
4
votes
2answers
66 views

Equation: placing subscript explanation at the very end

Most of the times I use equations that have subscripts and sometimes I want to give a short explanation of the subscripts, e.g., what are the limits, or which are the categories, should they be small ...
5
votes
2answers
87 views

Big Euclidean norm?

I would like to replace the Euclidean norm and the first pair of brackets with bigger ones but I get errors. Can you help me to fix it? \documentclass[11 pt,a4paper,oneside,openany, ...
8
votes
2answers
496 views

Smartly omit chapter number in equation numbering

In my thesis I use chapters, sections and subsection. I like to have my equations numbered with respect to section, but I want the displayed equations numbers not to include the chapter number. ...
2
votes
2answers
44 views

Simple newline in equation [duplicate]

I'm trying to line-break in the middle of a series of defined matrices. The code looks like: \begin{equation} I = \begin{pmatrix} 1 & 0 \\ 0 & 1 \end{pmatrix}, X = \begin{pmatrix} 0 & 1 ...
1
vote
2answers
57 views

Two lines in an equation of one line

What I want to do is to include two lines at the begging in an one-line equation, just like in the following picture. Does anyone have any idea in order to achieve it? Thanks a lot.
2
votes
2answers
38 views

Inline and display equation font size

I need the display equation fontsize 1pt smaller than the normal text, but inline equation remain same as text font size. how to handle this in latex anyone help on this thanks in advance
5
votes
1answer
85 views

Break in square root line

I'm having a problem where the line that runs the top length of my square root sign is discontinuous. \begin{equation} N_t(\text{V})=\sqrt{\sum_{i=0}^{n}N_i^2} \end{equation} Yields this... ...
1
vote
1answer
36 views

Cross reference the equation: number are not consistent [closed]

I have a very weird problem in Latex. I have an equation: \begin{equation} \label{eq:eq1} \end{equation} This equation has the number (1) at the end of it. This is correct and what I want. ...
3
votes
1answer
101 views

Put numbers to equations

I want that latex always puts a number behind an equation that I created with $$ $$, but not when I did it with $ $. Is this possible?
1
vote
3answers
54 views

equations in multiple lines

I'm using the following code to generate the second figure. \begin{equation} \begin{array}{c} \displaystyle \min_{W, ...
2
votes
1answer
780 views

Latex question “Missing $ inserted

I want to write this simple equation in latex 2/|w| In which |w| is the norm of w,, I tried with \frac{2}{\|w\|} And get error "Missing $ inserted" then I use this ...
6
votes
1answer
7k views

Left align (to the page) displayed math

How can I left align the display math environment (either $$ or \[)? I keep running into people asking about the align environment; but I just want to change displayed math from center to left align ...
1
vote
2answers
57 views

Help with cross-referencing an equation

I am trying to learn how to use the \eqref commands instead of just doing tag{1.1}, so I don't have to go back and renumber. I'm having trouble: in problem 3b, I say Now \eq{y(t, \epsilon)= y_0(t) ...
0
votes
1answer
33 views

Cross-referenced equation never becomes defined

I have a strange problem with cross-referencing my equations: no matter how often I run pdflatex they stay undefined. Other references do get resolved. Is there something wrong with the way I label ...
4
votes
2answers
221 views

how to make maths equations start at the left?

how to make maths equations start at the left? $$ \lim_{ x \to 0} \frac{\log {10 + \log(x+ \frac{1}{10})}}{x} = 10 $$ this display on center we want to start it left
3
votes
1answer
74 views

bad looking binomial

I want to post something on math.stackexchange, but I have doubts about visual aspects of it. Take a look at $ {n \choose \lfloor \frac{n}{2}\rfloor} $ or $ { {n} \choose \frac{n}{k}} $ It ...
58
votes
5answers
53k views

eqnarray vs align

I want to include a list of related equations, say, for a proof, in my LaTeX document. As far as I know, I have two good options, eqnarray and align. What is the difference between them, and how do I ...
1
vote
5answers
67 views

Line breaking in equation

This is the equation I want to write in LaTex: I have read these advices, but for split and multilined commands it says that they are undefined (and also for multiline, but nevertheless this is not ...