{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.

learn more… | top users | synonyms (1)

9
votes
3answers
395 views

Arrow pointing to subscript in equation

I'm writing an equation for the components of a contracted tensor. I want to label one of the lower (covariant) indices with the text "rth positon," and have an arrow pointing to it from below. Any ...
1
vote
1answer
31 views

Horizontal list inside equation

I'd like to have a horizontal list with roman enumeration (i.e. i), ii), iii),...) inside an equation. The idea is for each item of the list to be individually referenceable. This is what it should ...
0
votes
1answer
37 views

How to make the first line of equation level up with question number? [duplicate]

I have a multi-line equation as follows: \begin{enumerate} \item \begin{enumerate} \item \begin{align*} A \cap (B \cup C) & = x \in A \cap (B \cup C) \\ & = x \in A \wedge x ...
3
votes
1answer
61 views

How to use macros to repeat math equations in different settings

Suppose I have an equation like y=a+b that I want to repeat multiple times. I want to use macros to define this equation. First, I thought that the following definition would do the tric. ...
5
votes
2answers
103 views

flalign doesn't work in for me

I want to left justify my equations using flalign. However,it works in some places and doesn't in others. Below is a sample of my code \documentclass[12pt]{article} \usepackage{amsmath} ...
2
votes
4answers
196 views

Fit an equation in a single column

I am using the following code but the result obtained is not setting in the space (left column of the page). I have it on my page but it is overlapping the text on the right column of the page. How ...
2
votes
0answers
32 views

sagetex with breqn ? break line sagetex equations

When using sagetex, it often produces very long equations that are not visible anymore because they go over the page width. How to fix that? I could work around it by loading the .sagetex.sage into ...
6
votes
2answers
6k views

How to include chapter number in equation numbers

I am trying to change the equation number style in classicthesis package. I followed the answers given in here but it does not affect the equation style. I want to include the chapter number in the ...
1
vote
1answer
47 views

How can I align multirow and multicolumn equations?

There is a multiline and multirow equation: \begin{equation} \begin{cases} f(x)=\frac{1}{12} \cdot x \quad g(x) = \frac{1}{24} \cdot x, & x<12 \\ f(x)=1 \quad g(x) = \frac{1}{8} \cdot x - 1, ...
16
votes
4answers
509 views

Graphics equations: put text on equations

I have a big question that I cannot solve by myself. I would like to add text on my equations, but I like to have some graphics on those. For instance, I would like to explain why I am doing ...
84
votes
5answers
170k views

How can I split an equation over two lines

I am having the following equation: \begin{equation} Q(\lambda,\hat{\lambda}) = -\frac{1}{2} P(O \mid \lambda ) \sum_s \sum_m \sum_t \gamma_m^{(s)} (t) \left( n \log(2 \pi ) + \log \left| C_m^{(s)} ...
77
votes
5answers
176k views

How to break a long equation?

I have a long equation but long enough to occupy two lines. I want to break it to improve readability. How can I break it? \begin{equation} F = \{F_{x} \in F_{c} : (|S| > |C|) \cap (minPixels ...
1
vote
2answers
96 views

How can I make comments inside an equation?

How can I make comments inside an long equation, something like: \begin{equation} G(r) % comment here = \frac{A}{B} = \frac{\frac{t_c}{3}}{2 \cdot \frac{2t_b + t_v + t_c}{r}} = \frac{t_c}{6 \cdot ...
2
votes
2answers
150 views

how to write an equation with a special arrow and super and sub scripts

How do I generate something like this?I don't know how to generate such arrows and how to write above and below the arrow.
1
vote
2answers
120 views

Equation subnumbers in IEEEtrantools?

I'm using subnumbers in IEEEtrantools: \documentclass{article} \usepackage{IEEEtrantools} \begin{document} Numbered equation: \begin{IEEEeqnarray}{rCl} a & = & b \;. \label{eq:tTy} ...
2
votes
0answers
46 views

Replace latex equations in a PDF by rasterized graphics

Is it possible to generate a PDF file with pdflatex where the equations are replaced by rasterized images? This would make conversion to other word processors formats easier.
3
votes
5answers
156 views

Align equations in enumerate environment

I want to left align equations just as the items in the left. I used the following code but it only align items not equations \begin{enumerate}[align=left] \item[Charm] $C\equiv N_c\equiv ...
2
votes
1answer
58 views

Latex equation problem by using MAC OS X Grapher

I have used MAC OS X Grapher to create this equation: \begin{equation} \mbox{C}skip\left( \; d\; \right)\; =\; \left\{\begin{array}{cc} 1+\mbox{C}m\cdot \left( Lm-d-1 \right), & if\; Rm\; =\; 1 ...
3
votes
4answers
5k views

equation number problem

I'm relatively new to TeX/LaTeX, writing classroom notes. here's what I got: \begin{equation} \label{eqn:constantspeed} v=\frac{s}{t} \end{equation} It is very important to remember that Equation ...
1
vote
1answer
30 views

Problem with referencing to the the number of an equation when using arabic support of babel

Unfortunately, I have a problem when using babel with arabic. When deferring to the number of an equation, the digits are reversed. In the below document when using (\ref{eq:10}) it gives (01) instead ...
3
votes
1answer
34 views

LaTeX locally change equation numbering in empheq

The following short sample generates a list of numbered chemical reactions. I would like to change the numbering from the default (1) and (2) to (R1) and (R2). \documentclass[]{article} ...
2
votes
2answers
45 views

How to make equation text size to be normal

The letters in my equation are shrinking and I'm trying to revert that: I'd like them to appear as follows: If you notice you can see that the parenthesis' size on second image vary like 3 times ...
3
votes
2answers
65 views

Simple equation editing

I am writing a simple equation in my thesis: \begin{equation} \begin{align} y &= x^{k}\\ \log(y) &= \log(x^{y})\\ \log(y) &= y\log(x)\\ \frac{\log(y)}{\log(x)} &= y \end{align} ...
0
votes
1answer
48 views

using the soul package with equations

I use the soul package to highlight some changes in my documents for review purposes. However I can't get it to work with equations (or other environments for that matter). Basically I create a ...
2
votes
1answer
71 views

Is there a formal grammar for *Equations* in TeX/LaTeX?

I've looked at this and this and understand there is no grammar of TeX as a whole. I am wondering if there is a grammar just for equations. They are relatively easy to identify in an amsmath file ...
5
votes
2answers
110 views

How to produce bmatrix in pmatrix?

I wish to produce the following: So, far I only achieved the following: \begin{equation} \begin{pmatrix} v_a\\ v_y \\ \end{pmatrix} \sim \mathcal{N} \begin{pmatrix} \bar{v}_a, & \sigma_a^2 ...
3
votes
1answer
92 views

Outputing matrix-vector in latex?

I have to write a formula like this: Using: \begin{equation} \left( \begin{matrix} n \\ k \end{matrix} \right) =\frac { n(n-1)\quad ...\quad (n-k+1) }{ k(k-1)...1 } \end{equation} The daum ...
0
votes
0answers
21 views

How to include bold+italic font in an equation

\documentclass[a4paper,12pt,numbers=noenddot]{scrartcl} \usepackage{mathtools} \usepackage{amsmath} \begin{document} \begin{equation} \mathbf{R}_I(\mathbf{u}_{e}) = ...
0
votes
0answers
9 views

How do you write multiple terms on RHS enclosed in curly braces in an equation? [duplicate]

How do you implement this in latex? I can align '=' but how can I get the large curly brace and all three terms aligned properly? Please help.
18
votes
2answers
9k views

Citing the source of an equation?

I cant find a good way of adding a \cite to an equation. I'd like to give a reference to the equation's source, but I can't figure out how to typeset it nicely. If I include it in with the equation ...
1
vote
1answer
29 views

defining a new notation [duplicate]

To show the direct limit, I know some ways but I wish to write this inductive limit using a new command, \limind? In other words, when writing this new command I want to see this: limind, not in ...
2
votes
2answers
41 views

Typing two line brackets, with single line on right hand side

I am trying to type the equation in the photo below, but am having a hard time coming up with a solution. In addition to this, is there a neat way to make the F slightly larger than normal text?
1
vote
1answer
64 views

Absolute position of equation number

Is there a way to control where the equation number is placed? I mean absolute position (where coordinates or something like that may be used), not just place it on the right side or left side of ...
0
votes
1answer
37 views

How do I indent every line?

What I'm trying to achieve is to align all the equals signs above each other like this: E[ag(X)+bh(X)] = aE[g(X)]+bE[h(x)] = io;garo;gira = AW$aryyy = ...
0
votes
0answers
23 views

Large Equation with no left hand margin

I have a large fractional equation with multiple lines already in the numerator. I want to get rid of the left hand margin entirely (or almost entirely) for this equation only to try and make it fit ...
0
votes
0answers
24 views

Latest MiKTeX update breaks XeLaTeX + fleqn [duplicate]

I updated the MiKTeX on my system two days ago. After that, compiling my codes using XeLaTeX gives the following error: ("C:\Program Files\MiKTeX 2.9\tex\latex\base\fleqn.clo" File: fleqn.clo ...
4
votes
2answers
63 views

How can I cite one sub-equation in subeqnarray?

I defined the following subeqnarray \documentclass{article} \begin{document} \begin{subeqnarray} & a_1+b_1=c_1, \label{eq:subeq1} \\ & a_2+b_2=c_2, \label{eq:subeq2} \\ & ...
6
votes
3answers
100 views

Aligning text to the right of matrices in math mode

I wonder how I could make LaTeX align to the right some specific descriptions I wrote about the operations I apply to matrices. For example, here is a screenshot of what I have right now but I want it ...
3
votes
2answers
54 views

write equation with more than one curly brace

I was trying to write the equation, but did not get enough hints in tex.stackexchange.com
4
votes
3answers
296 views

Two lines in a bracket

I am facing trouble trying to enter the formula: I entered: \Bigg[ \vec{p}^T_1+\vec{p}^T_2=\vec{E}^{miss}_T, p^2_1=0, (p_1+p_l)^2=p^2_2=M^2_W, (p_1+p_l+p_{b_1})^2=(p_2+p{b_2})^2=m^2_y \Bigg] ...
1
vote
3answers
45 views

Not able to see the complete equation [duplicate]

I am trying to write an equation using this LaTeX code \begin{equation} ...
1
vote
3answers
96 views

Align long equation after equals sign

I see there are plenty of questions posted here with similar topics, but I can't find a solution to my question. Below is my latex code for a few equations. How can I force text on the 2nd, 3rd (and ...
0
votes
1answer
98 views

Equation with note and tag

Given the following set of equations as an example: `... \begin{align} x &= y^2 + 3 \\ y + 3 &= 11 \end{align}` The equations will be center aligned with respect to the "=" sign and ...
2
votes
1answer
26 views

Uncentered split equations

I want my equations to start on the left with two tabs. I use \qquad\qquad for this. When I split an equation with \begin{equation*} and \begin{split}, TeX centers the equation. Any advice on how ...
1
vote
2answers
49 views

Aligned Equation Resizing? (Above or Below \textwidth)

My input: \begin{equation} \begin{aligned}[t] & \min\limits_{\bm{\Delta(P,Q),u}} & & \sum\limits_i u_i, \\ & \text{s.t.} & & (P_{min_k},Q_{min_k}) \leq (P_k,Q_k) \leq ...
2
votes
1answer
67 views

Tagging multi line equations

Often I have a chain of equations but later on I only want to refer that the first statement is equal to the last one. There are some options to do that: \begin{align} \label{equation} a ...
22
votes
11answers
2k views

What useful web services are out there?

Looking at this question, I wonder what good and useful web services are out there. For example the LaTeX symbol classifier looks interesting. You can draw a symbol with your mouse and get back the ...
1
vote
1answer
84 views

multiple subequations same line with reference

I'm trying to write several equations on one line, include a label for each equation, and also be able to view the equation number for each equation. Is this possible? I've seen several related ...
3
votes
2answers
119 views

Use different math font in inline-style and display-style formulas

I would like to use a different font in inline-style math mode ($...$) and displayed equations (e.g., \begin{equation} ... \end{equation}). Currently, I set my fonts with \setmainfont{Frutiger 45 ...
12
votes
2answers
744 views

How to draw a double-ended arrow between the numerator and denominator in a frac inside a sqrt, and an arrow labeled by an otimes pointing to that?

Here's what I have, and I've hand drawn what I seeking: I'm after (a) a double-ended arrow with the two ends pointing to the numerator and denominator of a fraction under a square root, and (b) an ...