{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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Add a fixed letter to all equation numbers [duplicate]

I am working on a supplementary for an article and I want the equation in this supplementary to have the letter "S" before the numbers of the equations (i.e. equations (S1), (S2), etc, instead of (1), ...
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45 views

Alternating equation numbers [duplicate]

Possible Duplicate: Equation numbers in outer margins Is there a way to put equation numbers to the outer edge of a two-sided document? Some kind of mixture of leqno and reqno which puts ...
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1k views

\eqref{eq:..} doesn't work as expected [closed]

If I write something like this As shown in \eqref{eq:..} I would expect the following output after compilation: "As shown in (1)". However, I always get this:"As shown in equation (1)". How can I ...
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47 views

Need “(eq. 1)” style equation numbering [duplicate]

Possible Duplicate: Changing the apperance of equation numbers with amsmath I am editting a paper that requires the equation numbering to be of the format: F=m a (eq. 1) Is ...
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249 views

Equation numbering lost [closed]

I'm using equation numbering in a book at section level. Somehow, after chapter 10, equation numbers turn 0 and remain that. I'm not doing anything special before that. Any clue?
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1answer
176 views

How can I label for a collection of equations? [duplicate]

Possible Duplicate: Separate labels in cases I want to label each equation in a collection of equations as in the example below. How can I do this?
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0answers
50 views

Write Cyrillic in equations just like Greek letters? [duplicate]

Possible Duplicate: What packages will let me use Cyrillic characters in math mode? Is there any way to get these letters in the same way as the Greek ones? So with \theta, etc? I have ...
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0answers
49 views

How to make all the text in math mode non-italic [duplicate]

Possible Duplicate: Is there a way to set math mode font non-italic? I learned, that I can change the equation to not-italic, using $\mathrm{text}$. But how to make all the equations ...
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2answers
583 views

Error using subequations

I am using subequations. There is no way to get a right output... I am using \documentclass{book} \usepackage{amsmath} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsthm} \begin{document} ...
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0answers
45 views

Indicator function [duplicate]

Possible Duplicate: How to look up a symbol? How do you represent Indicator function in LaTeX? I would like to use something like \mathbb or \mathcal on the "1" character; is it possible? ...
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0answers
70 views

Referring to a whole eqnarray [duplicate]

Possible Duplicate: numbering few equations together I've got an eqnarray with multiple equations and a label on it, e.g.: \begin{eqnarray} \hat{\delta}(q_0,\epsilon) & = & ...
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0answers
213 views

Custom Equation Numbering [duplicate]

Possible Duplicate: Label equation with a symbol I wanted to know if there a way to create your own custom markings for equation numbering instead of the automatic numbering. Preferably, I ...
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2answers
652 views

Align equations on equal (=) symbol [duplicate]

How to align equations as in the image below? Update: I try using array but it takes so much work to align everything in order. For example, I need to know how many columns I need to perform the ...
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3answers
208 views

How to add explanatory text labels to a list of equations / solving steps

Does anyone know how to do this in LaTeX and can explain how it is done? The font and design does not matter, what I want is to label the equations.
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2answers
8k 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: ...
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2answers
185 views

How to align an equation reference (1) to the right

I have a centred equation and I'd like to place a (1) on the same line as the equation, but aligned to the right, so that I can refer back to the equation in future. What I have at the moment is: ...
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2answers
7k views

Smaller \lbrace than expected [duplicate]

Possible Duplicate: How do I format this equation in LaTeX? \begin{equation} p_{GL}= \lbrace \begin{array}{@{} l c @{}} 0.59p_R+0.3p_G+0.11p_B & \text{p es un pixel del fuego} \\ 0 ...
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4answers
56 views

Breaking a line that begins with \left(

Sometimes one needs to break a line that started with \left( to another line that ends with \right). This procedure can not be processed though using the command: \begin{equation} \begin{aligned} ...
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3answers
2k views

Bullet and equations or itemize and equation

I am using the following command. \documentclass{12 pt}{article} \begin{document} $\bullet$ $A = B$ \end{document} Here, I need to show the both bullet and equation by the number like ...
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3answers
465 views

Structure of Maxwell's equations and numbering in Latex

Please,how we can write this: Thank you.
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2answers
5k views

Cross-referencing an equation

So far I've always used non-labeled alignments with align*, but I think it's time for a small change. How do I refer to an alignment after creating it? I tried searching similar topics but I didn't ...
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1answer
138 views

Missing dollar inserted, cliched!

I give up, what is the mistake here?!! \begin{equation} \rp = \frac{\sqrt{|s|^{2}-\pi^{2}}}{1+\bar{z}} \end{equation} I get the error ! Missing $ inserted. <inserted text> $ l.156 \rp = ...
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1answer
228 views

Numbering equations

If I am writing a LaTeX document on TexMaker and I want to number my equation but most probably I will be adding details later on and I do not want to fall into retyping it all over again. So if for ...
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2answers
577 views

How to draw this figure?

The figure in the attached image contains mathematical formulae, some of which are aligned, also it is rounded by a box, could anyone tell me how to draw that? Thank you very much!
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1answer
1k views

Long formula alignment inside breqn with tabs?

It aligns the formula to the left-hand-side but I would like to get tabs here-and-there. How can I get tabs inside breqn or is there some package to do it automatically? $ cat test.tex % breqn -pkg ...
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3answers
945 views

Equation formatting: spacing between characters

I have the following variable: $\omega_{fo}$ which gives [;\omega_{fo};] . The problem with the output is that there is a quite big separation between the letters f and o. Is there a way to make ...
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3answers
66 views

Obtaining left aligned equation [duplicate]

How can I align this equation to the left? \begin{equation} \beta_1=(n_{20}+n_{02}) \\ \beta_2={(n_{20}-n_{02})^2}+4{n_{11}}^2 \\ \beta_3={(n_{30}-3n_{12})^2}+{(3n_{21}-n_{03})^2} \\ ...
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2answers
80 views

Please how can I write this equation in latex?

Please how can I write this equation in latex?
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1answer
39 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 = ...
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1answer
113 views

Optimization formulas in LaTeX

This is the code I'm using for my optimization problem. \begin{equation} \begin{array}{rrclcl} \displaystyle \min_{w,b,\xi} & \multicolumn{3}{l}{\frac{1}{2}w^{t}w+C\sum_{i=1}^{N}{\xi_{i}}}\\ ...
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1answer
229 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.
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2answers
1k views

continuing equation under the equal sign [duplicate]

how to continued the equation under the equal sign? I want to do it like this
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2answers
2k views

Trouble with multicol

I'm trying to use multicol to create a formula sheet with two columns. I have specified the use of such columns, and their position, but when I compile they come out one after the other rather than ...
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2answers
41 views

Line Break in Equation with Text

I would like to include an equation, which mostly consists of text elements, however I am having trouble with aligning the last argument which spreads over two lines in order for the equation to still ...
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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 ...
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2answers
85 views

How to write the equations with conditions in two lines?

I want to write the boundary condition in the following form. Need your help to write the below equations in two lines
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1answer
70 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 ...
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1answer
120 views

How can I type this format of equation in latex? [duplicate]

I specifically want braces on right side of the set of equations in given format.
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1answer
62 views

Multiline equation in cases with special symbols

\begin{equation*} $\theta$ = \begin{cases} $\eta$ & \text{$\widehat{P} \textless \bar{P}$}\\ $\eta$ & \text{$\widehat{P} \textgreater \bar{P}$} \end{cases} \label{eq: ...
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1answer
1k views

How to put a multi line equation inside a box

I have a multi-line equation; \begin{align} \label{eq:er25} F(\gamma) &= aaaaa \nonumber\\ &+ bbbbbb \nonumber\\ &- cccccc \end{align} How I can put this equation inside a ...
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2answers
64 views

Multiple aligns and line breaking

I am trying to have multiple alignment in my equation in addition to line breaking. Here is a MWE illustrating my problem: \documentclass[10pt]{article} \usepackage[T1]{fontenc} \usepackage{amsmath, ...
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1answer
50 views

is there a reason not to use align?

I have plenty of equations, some of them single lined and some of them with multiple lines which I normaly using the align environment. Now my question is: Is there a reason to use equation over ...
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1answer
742 views

how to change spacing between align environments and equation environments?

I am using align and environment for various equations. There is some space that comes before and after the equations that I would like to minimize. Is there a single command that could be used to ...
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1answer
271 views

eqnarray or equation for single-line equations?

Normally I would use \begin{equation}, of course. But I got a huge file (more than two hundred pages) where many equations are formatted like this: \begin{eqnarray} a = b + 1 % no & here! ...
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3answers
40 views

Breaking an equation in a desired case

Although there are some ways to breaking an equation even at TexStack but they could not help me. I have an equation which is written below: \begin{eqnarray} \langle ...
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1answer
56 views

What are some common ways to add variable descriptions with equations? [closed]

I'm looking for a good way to add variable descriptions immediately following equations. In plain text, it might look something like this: r_p = a(1-e) where a is semi-major axis (space) e is ...
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1answer
139 views

How to express this in LaTeX?

I want to know how to express this function in LaTeX. Can anyone help me?
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1answer
637 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 ...
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1answer
165 views

Undefined control sequence error for equation [duplicate]

I am trying to reproduce the following equation in LaTeX: nopt(d, B) = argminn {Pt - LMI (d, n, ω + 0.5B) >= Pth } and the syntax I have used is the following: $n_{opt}\left(d, B\right) = ...
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1answer
81 views

Several lines in equation

I would like to get in LaTeX what the following code produces on Math.SE: $$\pi(X,Y)\to HoM(X,Y)\\\ [f]\mapsto[RQf]$$ And if I wanted to have an equation number to the right of the two lines, ...