{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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5
votes
1answer
57 views

Enumerated list with custom label, containing aligned math equations

How do I write 4°? When I use align* or any other environment the equations become centered and I want all of them to be in a fine line just like on the picture. Here is what I tried: $(i)$ ...
0
votes
1answer
55 views

how to use mathbf or bold type in eqnarray environment?

my math equations dosent look very clear, i think they lack a little of bold. how can i use \mathbf in eqnarray environment ? more general what do you suggest to make equations very clear and ...
2
votes
2answers
84 views

Using \nearrow and \searrow to separate an equation in two alternatives

I'm tryin' to write the solution of an equation with two possible solutions, as x(ax-a+1)=0. I'm using \nearrow and \searrow with an array but I don't get it fits right. This is the code: ...
3
votes
2answers
42 views

Aligning two columns in one equation!

Consider the following \documentclass[12pt]{article} \usepackage{amsmath} \usepackage{amssymb} \begin{document} \begin{align} X_{n}=\begin{cases} X_{n}^{I}= ...
3
votes
1answer
39 views

LaTeX minimal + refcheck + equation

The following LaTeX components do not work together in combination: the document class minimal the package refcheck the equation environment Though the article class seems to work OK. Error ...
0
votes
1answer
41 views

Issues titling an equation block

Does anyone know how I can put a small title right before a line that I have created without putting a large amount of space between the small title and the line? Space is of utmost importance on this ...
2
votes
1answer
33 views

Wrapping an equation around a list

Is it possible to apply a single centered equation # to a list? I'm using aligned wrapped with equation in the first list but 1) it requires a fair amount of manual spacing to make it look right and ...
1
vote
1answer
68 views

Latex equation writing problem: equals appears as minus [closed]

\begin{equation} X=456 \end{equation} after compiling it is showed x-456 where the = symbol gone
6
votes
0answers
91 views

How can I comment out specific parts of both text and equations by a general command/switch?

I want to define a command or switch at the top of my document that will seamlessly include/exclude all the explanatory notes and lines of working that don't need to be in a final paper (but are handy ...
2
votes
1answer
41 views

Adding right brace and equation number

I have an eqnarray that consists of 4 lines. I would like to have a right brace } that spans the last two lines with equation number, first equation with equation number and second equation with ...
4
votes
2answers
48 views

Why is \smallskip so big after display math?

In the below MWE, why is \smallskip adding so much extra space after display math? (And how do I fix it?) \documentclass[12pt]{article} \usepackage[english]{babel} \usepackage{amsmath} ...
2
votes
1answer
52 views

Space lost after \newcommand [duplicate]

I use the initialism "CE" a lot in my thesis, both in an out of equations. I find that the letters are too far spaced for my liking when used in an equation, so I use the \! command to reduce the ...
5
votes
1answer
52 views

How to make hyperlinks point to the top of an equation?

I've got a system of equation splitted on multiple lines with the environment split and a reference to them, which I would like to point to the top of the system of equations. Here's my MWE: ...
5
votes
4answers
73 views

Vertical Alignment of Equations in a Table

I am writing up a university project, and I want to create a table with the left column containing Feynman diagrams (which I have drawn using the feynmp package) and the right column containing ...
2
votes
3answers
44 views

Right-justifying a comment for an equation that uses leqno

I'm unable to get the formatting correct when attempting to add a comment to an equation that uses leqno. Ideally, I'd like the equation to remain centered regardless of whether or not it is numbered. ...
6
votes
2answers
89 views

How to reduce the space enclosed in parentheses?

The following lines gives me more space below E^2 inside the parentheses. How to reduce this extra space. Also, the square (2) is above enclosing parentheses. \begin{equation*} ...
3
votes
1answer
42 views

Equations in different part of the text not aligned

I have a problem, in my document I have two sets of similar equations but they do not align. This is the text: If $\tilde{\mathbf{p}}$ is first combined with the system of Eq.\ref{inplane:eq7} and ...
1
vote
0answers
49 views

LaTeXIt Image Width

I'm not much of a LaTeX jockey, but I use it to typeset equations via LaTeXIt. I'm noticing that LaTeXIt will cut off the typeset image if it exceeds a certain width - I've looked for a document ...
1
vote
3answers
77 views

How would I get custom-colored equation numbers as simply as possible?

In a continuation of efforts to create a complete SAE technical paper class file, I need a little help finding the easiest way to create colored equation numbers. In my class file, I already define ...
3
votes
2answers
97 views

equations automatically aligning to the left, how do I centre them?

I was under the impression that equations align to the centre. I'm using a pack \documentclass [twocolumn, final] {svjour3} which I am guessing is changing that. So for example this: ...
4
votes
3answers
163 views

Multiline equation inside a split environment

I have a series of equations aligned at = inside a split environment. (They're all actually the same equation, so the left-hand-side is missing in all but the first equation.) Unfortunately the last ...
0
votes
1answer
51 views

superscript bug

I don't know if you guys can help me here but I do subscript when a value is superscripted then it isn't showed in the right way? 2 shouldn't be shown under x but more like x_2 my code looks like ...
2
votes
2answers
43 views

Problem with align alignment

I have written the following code: \mathbb{R}^n\times\cdots\times\mathbb{R}^n&\rightarrow \mathbb{R}^m\times\cdots\times\mathbb{R}^m \rightarrow \mathbb{R}\\ (v_1,\cdots,v_k)&\mapsto ...
2
votes
2answers
59 views

Complex conjugate for inner product

I am having trouble writing an inner product with a horizontal bar over it representing the complex conjugate. $\langle b_i, b_j \rangle=\bar{\langle b_j, b_i \rangle}$ doesn't do the trick Here is ...
3
votes
1answer
65 views

sum in the same line as a fraction

I'm sorry if this has been asked. I'm new to this and to Latex. I have this piece of code: \[ e^{-\xi_1 Y_1^N} = \exp\left(-\frac{\xi_1}{N}\ \sum_{n\geq1}{}V_n^1 e^{-s_n}\1_{\{ s_n \leq ...
7
votes
5answers
207 views

Two labels on the same equation line

I would like to have a compact set of two equations on the same line, each one labeled, with both labels on the far right. The code would be something like: \documentclass{article} ...
7
votes
0answers
85 views

Advanced Math and braille

How does one go about typesetting math books in braille with all parenthesized subscripts and superscripts and are there braille signs for the AmsMath package special symbols?
1
vote
0answers
59 views

latex libreoffice preamble TexMaths extension

I am currently using the texmaths extension to insert latex formulas into a powerpoint presentation. (libreoffice impress). I have to use \usepackage{braket} for the equations to work. the problem ...
4
votes
4answers
217 views

split an equation

I have the following equation \documentclass{article} \begin{document} \begin{equation} \left\{\begin{array}{l} W_1=N_c^ * w_1^c + N_s^ * \left( {w_1^s + 2w_2^s + w_3^s} \right) \\ W_2= N_s^ * ...
2
votes
1answer
39 views

Problems with \sum lower limit when in an exponent (displayed maths)

I just can't get the lower limit to be under the $\Sigma $ in an equation that has this: \begin{align*} e^{ - \sum_{x_n \leq t}{g(x_n)} \end{align*} I've tried \[ \] ,the align* environment; and ...
1
vote
1answer
31 views

How to prevent the label of a long equation running into the right margin?

I have an equation of the form \begin{equation}\label{eq:master} f(x) = E \end{equation} where E is a long expression. The problem is that the label runs into the right margin. What is the proper ...
24
votes
2answers
2k views

Why does no one fix eqnarray?

It seems to me that everyone agrees that no one should use the latex built-in eqnarray environment. So much so that packages have been made to fix it, and several alternatives have been made, ie. ...
-1
votes
2answers
76 views

Numbering equations within chapters without using the chapter number [on hold]

Unfortunately, I'm running into the same problem for a couple of times now. I can't find the answer anywhere on this forum, so that is why I decided to post the question. What I am trying to do right ...
1
vote
3answers
53 views

\IEEEeqnarraymulticol and long equations

I am trying to set a long equation using IEEEeqnarray and \IEEEeqnarraymulticol. A simple example is below. \documentclass[12pt]{article} \usepackage{amsmath} \usepackage{amsthm} \usepackage{amssymb} ...
1
vote
1answer
71 views

Local equation numbering inside proofs

According to the question asked here and a possible suggestion to the problem which equations should be numbered given here I want to ask following question; I find it a good solution to number all ...
2
votes
1answer
38 views

How to make the distance between two rows larger in array?

I found a mathematical formula in mathdesign document, it looks good and elegant When I try to type it as it looks, what I got is always not as good as origin. The code I use is ...
3
votes
2answers
70 views

Non-continuous Equation Counters (increment per equation type)

I'm trying to have two separate equation counters, one for TypeA equations and another of TypeB equations. They shouldn't share a counter, but pick up the counter from whichever type they are within. ...
0
votes
0answers
8 views

how to refer to an equation so that its label appears with mathtools? [duplicate]

I am using showonlyrefs=true with mathtools, so only references with refeq actually appear in the document. However, there is one case in which I want to have an equation include a (x.y) label, even ...
1
vote
0answers
13 views

Locally reduce space between equation and qed / placement of qed [duplicate]

If (using amsthm) I have a proof which ends on an equation, and after that some text goes on, I have something like: text / (bit of space) / equation / (bit of space which looks huge because there ...
1
vote
1answer
67 views

Adding a equation number to a matrix

I do have a matrix but I can't add a reference number for it as shown in read in the photo below .. any help? \[ A= \begin{pmatrix} 0.3 & 0.4 & 0.3 & 0.0 \\ 0.4 & 0.3 ...
3
votes
1answer
76 views

setlength is not working (distance between equations)

First of all I would like to emphasise that I have read all the questions about this topic with no solution to my problem. I will write all that I have before \begin{document} just to make sure the ...
2
votes
2answers
44 views

How to center an index or variable under an expression or word in math-mode

How can I get the the term shown in the picture: $\underline{x_a}$ should be centered under max. What I know is the structure below, but this is not what I am looking for: $max_{\atop ...
3
votes
1answer
74 views

\neq prints as '='

When I try \neq the output looks like =. I found a similar problem - \neq (not equal) command does not work anymore. Doesn't look like my case (see below for details), and don't know how to follow the ...
2
votes
2answers
60 views

How to insert words into equation numbering

I would like to produce equations that have numbers on the right hand side in the style of (eqn 1) rather (1). How would I do this, presumably using a user defined command, but I am having trouble ...
1
vote
2answers
39 views

Equation on multiple line [duplicate]

I have a mathematical expression, I try to write it in multiple line. I tried: multline, equation + split, align .. . $\text{max} \left ...
1
vote
1answer
51 views

How to refer back to equations [duplicate]

I am using \begin{equation} \end{equation} to number my equations in my text. But I normally mention these equations in the further text. E.g., In equation 3 .... But if I change the former equation ...
1
vote
1answer
120 views

How to align multiple equation using tcolorbox in latex enviroment for Rmarkdown

I have the following latex inside Rmarkdown: \begin{tcolorbox} \begin{equation} \sigma = \beta_{0} \label{eq:Model0} \end ...
1
vote
3answers
84 views

Two equations in one line

I have a problem how can I write these two equations in a same row: ∀i,j 1≤i,j≤n and cij = ∑ aikbkj Thank you
8
votes
4answers
373 views

Nice display of proof steps without eqnarray

This is a follow-up question to: Is eqnarray really obsolete? The background is that I want to follow the general advice to avoid eqnarray. However, while working on old documents still containing ...
2
votes
2answers
107 views

Conditional equations with with one curly bracket in LaTex?

How would I code something like this I've got the code \begin{equation} L = \begin{cases} 1 & \text{if $i = j$ and $deg_j \neq 0 $} \\ stuff & ...