{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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7 views

refer equations across chapters

I want to refer equations and figures from the previous chapters(showing in structure). I have to find the label from that chapter each time which is consuming more time. I want pop ups for all ...
2
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1answer
22 views

Why are there so many errors (missing \right or extra \right)?

I've counted and checked but can't seem to find the problem. \begin{flalign*} u_0(x,\ t)\ =&\ x\left[t\ +\ \frac{t^3}{3}\right],\\ u_1(x,\ t)\ =&\ x\left[t\ -\ \frac{2t^5}{15}\ -\ ...
2
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2answers
20 views

How to resize matrix equation in beamer?

How do I resize this equation to get it to fit? I've googled for examples with no luck. --Bob \documentclass[11pt]{beamer} \usetheme{Warsaw} \usepackage[utf8]{inputenc} ...
3
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0answers
23 views

Difference between equation and align using tex4ht

I'm trying to produce an html copy of my book, which is written in LaTeX using tex4ht. Things are going better than I expected. But in some places I use the equation environment and in others align. ...
2
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1answer
42 views

Excess space before \[ at start of paragraph

When I have a displayed math equation (\[...\] or equivalently the displaymath environment) at the start of a paragraph right after a heading, there is too much space before it. This short code ...
2
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1answer
42 views

Referencing formula before defining it

I'm writing a scientific article and I would like to reference a formula before it appears in the text. In principle it should work, the problem is that I want to use the hyperref package, so that I ...
3
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4answers
105 views

Move second line in an equation to the left with split

I have the following equation: \begin{equation} \begin{split} f_a(w_1,\ldots,w_m,&z_{w_1pa},\ldots,z_{w_mpa},a) = \\ &\prod_{j\in \{1,\ldots,m\} \mid z_{w_jpa} \neq \emptyset} \left( ...
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0answers
21 views

Numbering equations within a table, \ref not working [duplicate]

I'm numbering equations within a table. First I setup \newcommand{\teqtag}{\hfill\stepcounter{equation}(\theequation)} Then within each table cell I have $x=y\teqtag\label{eq:myeqn}$ And ...
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0answers
24 views

aligned equation block error [duplicate]

Trying to create aligned equation block , seems that i've problems using inside with \left[\right]... \begin{equation} \begin{aligned} ...
4
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3answers
38 views

Align an aligned environment nested into split

I want to align the lines inside an aligned that is nested inside a split with the rest of the equation. This is an example: \usepackage{amsmath} \begin{equation} \begin{split} \text{max:} ...
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4answers
41 views

Dividing line in a matrix

How can I Tex this equation? I try to have exactly the same result but for the moment I only succeeded in having intersecting lines... Thanks!
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3answers
44 views

Adding text line in Equation Environment

I am a new user in LaTex. 1. Can someone please help me what wrong is with this code. \begin{equation*} T_{Loop Filter}(s)=K_{p}+\frac{K_{i}}{s}\\ The overall transfer function of given PLL can be ...
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1answer
32 views

Compile equations used in a document to an equation sheet?

I am trying to find a way to take all of the numbered equations in my document (i.e. anything inside an equation environment) and automatically generate an equation sheet appended to the end of the ...
5
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2answers
96 views

How to add square/circle around a term in equation and add comments using beamer

I am using beamer to write a presentation. In one slide I wrote a formula that looks like this: What I would like to do is something like this: Basically I want to draw a square or a circle ...
2
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0answers
19 views

Put parentheses by default when referencing an equation [duplicate]

I have this equation: \begin{equation} \label{eq:helicsol} x = y \end{equation} and then I have: As we can observe, the solution of \ref{eq:helicsol} and I get: As we can observe, the ...
3
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3answers
54 views

Gathering underbraces

this is my first question in this website. I have to say that it is being very useful for me to visit this site to learn how LaTeX works, so congratulations. So, the question is, how can I do this? ...
6
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2answers
152 views

Equation numbering in square brackets [duplicate]

Does anyone knows how can I use square brackets instead of parenthesis when numbering my equations? I used this command: \begin{equation} y = 2x \end{equation} The number appears on the right ...
3
votes
1answer
47 views

How to move amsmath equation label into LHS margin?

I am using amsmath and I would like to move the equation label into the left hand side margin aligned with the top of the equation. I have looked through the documentation but I can't find anything on ...
2
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1answer
33 views

Digit zero with a dot inside also in text mode

\documentclass[a4paper,11pt]{article} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} \usepackage{lmodern} \usepackage{empheq} \makeatletter \newcommand*{\pmzerodot}{% \nfss@text{% ...
3
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5answers
101 views

Like displaymath, but without math-mode

I often find myself doing things like \[ \begin{tabular}{cc} foo & bar \\ baz & qux \end{tabular} \] or \[ \begin{verbatim} code snippet \end{verbatim} \] to put a table or code snippet ...
5
votes
1answer
73 views

equation exceeds page width after changing document class from “article” to “beamer”

I write "article" at first, but I also need pdf in "beamer" version. But I found for those long equations appears fine in "article" will exceed the page width in "beamer" mode. So is there a method to ...
6
votes
2answers
95 views

How to avoid extra equation numbers while using subequations?

I searched through the web but I could not find the solution to my question: I try to write equation in the following format: TYPE a: A = {mathematics relation-a} 3.1 TYPE b: B = {mathematics ...
2
votes
1answer
76 views

Long equation design patterns in LaTeX

Is there an acceptable design pattern for how to type out LaTeX math formulas that have a lot of internal dependencies (the formulas do not necessarily have to be very long, just be very packed ...
2
votes
3answers
108 views

Help on typesetting an equation with fraction in numerator and denominator

I have the following equation: \documentclass{report} \begin{document} \begin{equation} T_e=\frac{T_{disch}\cdot e^{\frac{T_{ahe}-T_{disch}}{LMTD}}-T_{ahe}}{e^{\frac{T_{ahe}-T_{disch}}{LMTD}}-1} ...
3
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1answer
26 views

Can split and array work together?

I have the following problem. I need an equation which contains arrays and which should be on different lines because too long for one line. This is the code: \begin{equation} \begin{split} ...
0
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0answers
26 views

Is there a package to do function substitution and evaluation? [duplicate]

Is there any way to get function substitution and evaluation automated in LaTeX? That is, if I have $f(x)=x^3 + 3x^2 - 2x - 14$, and I want to show students what $f(2)$ means, I want it to ...
5
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2answers
120 views

What is the difference between align and equation environment when I only want to display one line of equation?

I am typesetting a physics document, and sometimes I need to type equations of several lines while in most cases I only need to type one-line formula. So is it OK if I always use align environment ...
2
votes
2answers
46 views

Equation mode, labelling equations

I have the following \[K^{-1}\left\|\sum\limits_{n=1}^N a_ny_n\right\| \leq \left\|\sum\limits_{n=1}^N a_nx_n\right\| \leq K\left\|\sum\limits_{n=1}^N a_ny_n\right\| (\dagger)\] But the ...
3
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1answer
72 views

How to put a box around just one equation inside eqnarray?

I would like to put a box around \dot{\mathcal{N}}_0+ik\mathcal{N}_1=-\dot{\Phi} inside the eqnarray below. I used \boxed{}, but did not work. \documentclass[a4paper,12pt]{article} ...
3
votes
1answer
40 views

Missing } inserted. \end{alignat}? why this error keeps on popping up?

here is a part of my code, which I am trying to run. \begin{alignat}{2} [M]: \max_&Z ~ \label{eqnP27}\\ \mbox{s.t.}~ %capacity constraints & \sum_{k \in H} y_{k} \leq ...
2
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1answer
71 views

What is the difference between `split`, `multline`, `align`, `breqn` for breaking an equation into multiple lines?

Sorry if this question sounds a bit amateurish but I haven't been able to find a good summary about the differences between these four environments for multi-lining an equation. Where do they differ ...
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0answers
26 views

Stack Exchange latex equations how [migrated]

What are the , sorry my terminology may be of, latex 'tags' used on this site? E.g. on TeXworks on my pc its \( to open and \) to close. its \begin{equation} to open and \end{equation} to have an ...
2
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2answers
52 views

Bold brackets in equations

I want to write an equation with bold extended brackets. For instance in: \left[ \frac{1}{2} \vec{\nabla} \times \vec{v} \right] I want \left[ and \right] to be bold. I already tried ...
0
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1answer
23 views

Parenthesis Size in a multiline equation

How can I use \left(.... \right) which automatically adjust size of parenthesis with it's inside content, in a multiline equation in \begin{align} and \begin{equation} environment.
3
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1answer
38 views

italics spilling over to the rest of the text

I have a simple line here: Let training data \textit{X} consist of x_{i...n} observations, where.... The intention is to let x have subscript i..n. This happens, however, after x_i..n, all the ...
0
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1answer
70 views

How to set the position of an equation in LaTeX?

In normal equation I do not have any problem. However for long equation I need to use figure so that my equation appear more obviously. (Note: I am using two column paper style). This is the equation ...
1
vote
1answer
19 views

How to add comments in align environment [duplicate]

I find it is necessary to add some explanation in a series of equations. Ideally, I would like to get something like the following picture (Resnick 1999). As you can see, the equations are still ...
4
votes
1answer
23 views

Making certain equation environments larger

I'm writing a lab report in LaTeX that involves a lot of equations. I wish for some equations to be larger than normal, owing to the fact that there are a lot of terms that are in the exponential, and ...
1
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0answers
40 views

Multiple equations given the same number

Without doing anything "odd" LaTeX has starting assigning the same number to different equations. It labels them fine up until 31, then it goes back to 30, then again 31, then again 31. After this it ...
0
votes
1answer
44 views

Extra Space between equation and line above that

How the distance between first line and equation and last line and equation is different. How to remove the extra space. I am using this code According to given assumption that n is a power of 2 ...
2
votes
2answers
48 views

How to use flushleft with eqnarray*?

I'm using WinEdit 9.0 along with MikeTex 2.9. My document preamble reads as follows: % ---------------------------------------------------------------- % Article Class (This is a LaTeX2e document) ...
6
votes
3answers
53 views

Equation number in aligned environment after last line

I'm using aligned inside align as follows \documentclass{article} \usepackage{amsmath} \begin{document} \begin{align} x =&22+2 \nonumber\\ =& \begin{aligned}[t] &5+3\\ &-3+4\\ &+15-0 ...
0
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0answers
16 views

How to set equation number with respect to the article instead of chapter? [duplicate]

I am working on a paper which is based on a special template. I need to use the \chapter to organize by document. In each chapter, if I have \begin{equation}, the equation is number with the chapter ...
0
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0answers
22 views

Framing equations [duplicate]

Is there any simple way of framing an equation? I often use \framebox{$ mathematics $}, but wish to use the frame around a numbered equation, not fussed whether the numbering appears inside the frame ...
6
votes
4answers
92 views

Aligning equations with two equal signs

I am trying to write three equations, second with two equal signs. I would like the first two to be aligned by the first equal sign, and the second and third by the second equal sign. I have the ...
0
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0answers
18 views

different modes to typest systems of equations [duplicate]

Would it be bad style to use in displaymode an array with three colums that are right-center-left ("rcl") oriented instead of eqnarray, to typeset systems of differential of equations ? The spacing ...
0
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2answers
64 views

How to write an equation in LaTeX?

How do I write this equation in LaTeX? Vo = ( R1/( R1+R4)-R2/(R2+R3) ) x Vs
1
vote
1answer
32 views

Undefined control sequence with \overbar

can anyone tell me why I get an "undefined control sequence" error with the following code please? \documentclass[times]{fldauth} \usepackage{amsmath} \usepackage{amsthm, amssymb, amsfonts} ...
1
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2answers
30 views

Section-level equation numbers follow previous section numbering

I am using \numberwithin{equation}{subsection} to number my equations uniquely for each subsection in my article. For example: Section 1 Title 1.1 Subsection 1.1 Title a=b (1.1.1) a+2=b+2 ...
4
votes
1answer
61 views

Dashed line in equation

What I want: What I have: with this code: \documentclass[11pt, titlepage]{report} \begin{document} \begin{equation} \label{eq:quark1} \left( \begin{array}{c} u \\ c \\ t \end{array} ...