{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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6
votes
3answers
188 views

Horizontal spacing after cases bracket in equation

How can I add a little horizontal spacing after the cases bracket, at the depicted position, so that 1 and 0 move to the right (the given screenshot looks okayish, but I'm using a different font where ...
8
votes
4answers
156 views

splitting middle equation of 2 rows

I have a very long equation which does not fit on the page and I am wondering if anybody can help me to align it properly. \begin{align*} &(q^1+q^3+q^5+q^7)(q^2+q^4+q^6+q^8) \\ ...
5
votes
2answers
104 views

Breaking equation - Problem with brackets

I want to break a long equation in LaTex. I have tried multline and align but I always get errors with the brackets. \begin{equation} \dfrac{dr_{ij}}{dt} = \frac{1}{2r_{ij}} \left[ 2 \left( ...
5
votes
4answers
329 views

How to add a line break in math mode but number the whole as one formula?

I am trying to get the following formula on two lines like this: \begin{equation} W \in \mathbf{M}_N \rightarrow W' \in \mathbf{M}_{N+1}\\ (w_{ij})_{1\leq i,j\leq N} \mapsto (w_{ij})_{1\leq i,j\leq ...
5
votes
3answers
255 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 ...
2
votes
1answer
99 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} ...
0
votes
0answers
52 views

Why Latex cannot compile when I add “\left[ ]\right” [duplicate]

Successful code: \documentclass[a4paper,cs4size,UTF8]{ctexart} \usepackage{amsmath} \usepackage{mathtools} \usepackage{amssymb} \begin{document} ...
3
votes
2answers
54 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 ...
3
votes
5answers
248 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
111 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
25 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: --------- ...
4
votes
3answers
87 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
221 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 ...
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
81 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 ...
1
vote
0answers
35 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: ...
3
votes
1answer
92 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 ...
2
votes
2answers
53 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} ...
2
votes
1answer
74 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: ...
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 ...
7
votes
4answers
221 views

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

How can I type the following equation in LaTex:
4
votes
1answer
151 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 ...
2
votes
2answers
96 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 ...
4
votes
2answers
126 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} ...
4
votes
4answers
258 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 ...
5
votes
2answers
105 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, ...
4
votes
2answers
81 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 ...
2
votes
2answers
107 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
74 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
56 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
1
vote
1answer
69 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. ...
5
votes
1answer
150 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... ...
3
votes
1answer
131 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?
0
votes
2answers
952 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: ...
1
vote
3answers
81 views

equations in multiple lines

I'm using the following code to generate the second figure. \begin{equation} \begin{array}{c} \displaystyle \min_{W, ...
3
votes
1answer
3k 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 ...
0
votes
1answer
671 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 ...
1
vote
2answers
63 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) ...
2
votes
1answer
50 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 ...
3
votes
1answer
117 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 ...
4
votes
2answers
249 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
6
votes
2answers
741 views

Slanted greater than and equal to, less than and equal to

Need to produce a "Greater than" or "Equal to" symbol with a slanted equal component of the symbol, i.e. the bottom bar not parallel to the typed line, but parallel to the bottom bar of the right ...
2
votes
5answers
116 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 ...
2
votes
1answer
64 views

How can I typeset an equation with braces and conditions in LaTeX?

I've got the following equation I've used \begin{equation} \centering A_j = \begin{cases} 0 & N^2 < N_j^2 \\ \text{must have been constrained,} ...
3
votes
1answer
71 views

How to place text flushed right in math mode (next to equation number)?

I have equations like this: \documentclass[DVI=17]{scrartcl} \usepackage{amsmath} \usepackage{cleveref} \DeclareMathOperator{\FA}{FA} \DeclareMathOperator{\RA}{RA} \DeclareMathOperator{\MD}{MD} ...
2
votes
1answer
48 views

Are the \[ and \begin{equation} used interchangeably?

When I use double dollar signs $$ or \[ and \] to begin and end math mode I have no problem compiling the file. When I substitute them with \begin{equation} and \end{equation} correspondingly I get an ...
3
votes
2answers
56 views

IEEEeqnarray reference subequations and subequation set

I've a pair of equations and I want to reference to them once using the sub-eqations, i.e. (1a),(1b) and once reffering to both of by using (1). How to do that? Here is what I've so far: ...
5
votes
2answers
339 views

Prettying up this equation from Mathematica

I like to type in 2d maths into Mathematica and then generate latex code for it. It has been working fine so far until I attempted this expression: TeXForm[HoldForm[ S (k*L) = (4*l + 1)/ 2 ...
0
votes
1answer
142 views

How to draw a induced charge under soliton - Feynman diagram?

Can someone illuminate line-by-line clear, how to draw this diagram? Just a clear LaTex code is enough. Thank you!! Either for the case: (1) in an equation or (2) in the figure.
3
votes
4answers
91 views

Make aligned equation vary alignment to avoid equation numbers on new line

I need to write a mathematical programming model composed of several constraints. Constraints are represented as two-columns rows: the first column is the equation and the second is its domain, e.g. ...