{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
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1answer
6k views

Aligning equations with using fleqn

I use fleqn as a document class, but now I solve problem, how to align few equations to the center and few to the right. I've tried \setlength{\mathindent}{1cm} but after that is the problem that I ...
3
votes
2answers
177 views

alignment and numbering of math formulas

I have 3 formulas which should be aligned at the = sign and numbered (1) to (3). Seems a simple task but trying both \being{equation} with \begin{split} and \being{align} did not work out. I alwasy ...
2
votes
1answer
110 views

Unusual line breaks in equation

I've got the following code, but I dont know why it creates line breaks in the equation \begin{enumerate} \item My Equation \begin{equation} P$\wedge$S \equiv \emph{False} $\implies$ L : ...
2
votes
0answers
42 views

Setting vertical space for displayed formula [duplicate]

Possible Duplicate: How to globally change the spacing around equations? In a paragraph such as: start text \[ ... \] end text How do you adjust the vertical gap between the text and the ...
2
votes
1answer
531 views

Long equations breaking without using breqn

How to achieve nice (non-automatic) long equations breaking, like dmath environment from breqn package does automatically, but using a more common environment, e.g., multline, multlined (from ...
23
votes
1answer
574 views

Unicode in the equations: pros and cons

Is there any pros and cons for using of Unicode (and vice versa) in LaTeX equations? Consider two examples: \lim_{h→0}∫_{x_0}^{x_0 + h}\frac{f(t)}{h} = f(x_0) x_0 ⇔ ∀ 𝜀 > 0, ∃ 𝛿 > ...
10
votes
4answers
370 views

Splitting a formula

What is the best way to split an overlong formula such as the following one to multiple lines: \documentclass{scrartcl} \usepackage{amsmath} \begin{document} \begin{eqnarray} P2‘‘ &=& ...
3
votes
2answers
2k views

LatexIt not rendering properly

I've been trying to figure out how latexit works, however, when I enter this simple piece of code, I get a long message of different errors as "LaTeX Error Bad environment delimiter", "You can't use ...
2
votes
0answers
195 views

Typeset Like Jackson's E&M [closed]

I was wondering if there's a package or style to match that of Classical Electrodynamics by J.D. Jackson (there is a multiple pages preview). His integrals are almost vertical and everything related ...
6
votes
1answer
355 views

Horizontal array of enumerated equations

This is for use in work assignments for math students. I'd like to post multiple parts for a given question, without sacrificing too much space for this. So I want a bunch of equations arrayed ...
2
votes
2answers
744 views

Split environment wrong braces dimensions

I have to split a quite long formula. I used a nested split environment but I have to break curly braces from one line to another using \right. and \left. The curly braces I get have different ...
4
votes
2answers
11k views

Equation does NOT go new lines, while using \newline

I've been trying to typset an equation which, at a certain point, spans several lines, but is a single step (so no numbering may occur). For this I used newline, but this doesn't seem to work. How do ...
6
votes
1answer
2k views

How to format multiple equations properly?

When I specify a set of partial differential equations, I usually have to write out not only the equation itself, but also its domain. To complete the problem, I need to specify the boundary ...
5
votes
1answer
102 views

numbering a several line “equation”

I'm trying to number an equation, which spans over several lines. I need for it to look like this My current tex for this is: \documentclass[a4paper,12pt]{article} \begin{center} {\it ``If A is ...
4
votes
2answers
830 views

Choosing numbering on equations

I'm writing some course notes and through out I want to refer to the equation number in the book we are using, rather than numbering the equations within the document. In other words how can I decide ...
7
votes
1answer
128 views

How to control the alignment of the brace in a dcases environment

The following code \begin{equation} \begin{dcases} u = \frac{\sqrt{2}}{2}(i+j)\\ v = k \end{dcases} \end{equation} results in the following display that I find ...
3
votes
1answer
760 views

Editing TeXnicCenter source code for {align}

Is there a simple way to change the TeXnicCenter source code so that the equation array button pops out:- \begin{align*} \end{align*} instead of \begin{align} \end{align} Only I find I ...
2
votes
1answer
269 views

\numberwithin makes the first equation unnumbered

I might be doing something stupid, but the following code produces a document with the first equation unnumbered (only an empty set of parentheses is given). The second equation is correctly numbered ...
3
votes
1answer
1k views

Putting a citation in equation array

I want to cite a reference to where I got an equation from in the middle of bunch of equations that I have inside an align*. Here is the code I've tried: \begin{align*} q(x_1,&\dots x_n) \\ ...
5
votes
1answer
6k views

Can I have a mathematical equation within a caption?

I'd like to have an eqnarray environment (or equivalent) within a table caption. If I do this naively, \begin{table*} % table stuff \caption{\label{tab:my_tab} \begin{eqnarray} a ...
8
votes
3answers
489 views

Changing the number of figure or equation automatically in text by changing the places of figures and equations

Is it possible to automatically reference a figure and equations in text? I meant sth like bibliography references. Moreover, by changing the place of the figures or equations relevant figure or ...
9
votes
5answers
895 views

centering a part of an equation

I am using \vdots in my equation, and I need it to be centered. As shown in the figure it is automatically left indented. I am not able to bring the dots to the center. I am providing MWE also. ...
3
votes
2answers
3k views

Enumeration of equations in the double dollar math mode

How introduce enumeration of equations in the double dollar math mode (i.e. $$...$$)? Or even better, is it possible to make $$...$$ as a particular math environment, e.g. equation or align?
9
votes
1answer
1k views

Braces in equations

This resembles what I want: Unfortunately, both braces are too big. I would like the brace on the top to enclose the variables, that is, span from (x_0 to \x_i). The brace on the right should ...
3
votes
1answer
85 views

Reducing sign interspace in slightly too wide equations

Some equations are sometimes slightly too wide. One way is to manually add \! commands wherever it seems relevant in the equation. Is there an automatic alternative to: x\!=\!y\!+\!z
10
votes
1answer
1k views

How to keep the alignment of equation array on a new page?

I have a very long equations inside \begin{eqnarray} long equation go over 2 pages... \end{eqnarray} I can't break into two by \begin{eqnarray} 1/n of long \end{eqnarray} ...
8
votes
2answers
310 views

List of all equations in the entire document

I am trying to put all the equations of my presentation made with Beamer into a single table to summarize them. They are however in various frames within \align environments. How can I achieve this? ...
2
votes
3answers
1k views

Is there an easier way to type math symbols than adding them with LaTex? [closed]

I want to add math symbols to my texts, but i can't get Latex to work, are there other ways to type math symbols?
3
votes
2answers
7k views

Aligning 3 columns in LaTeX eqnarray

I have the following LaTeX eqnarray: \begin{eqnarray} \int ( D \frac{d^2 P(x)}{dx^2}-\frac{d}{dx}[u(x)P(x)] ) & = & \int 0 \Leftrightarrow \\ D \frac{d}{dx} P(x) - u(x)P(x) & = ...
5
votes
2answers
3k views

How to create new counter of equation

How to create a new counter of equation. The new equation is matriz and use other sequence number. \documentclass[a4paper,10pt]{article} \usepackage[utf8]{inputenc} \begin{document} ...
12
votes
4answers
2k views

Align denominator of fraction to left

The highlighted part has the equation centred, which looks rather imbalance with the top equation, is it possible to align the highlighted part to the left? Below is the code I am using. ...
2
votes
1answer
206 views

Is it correct to use a comma in this equation?

Consider: Then, the sequence $k_i$ given by (3.38) is increasing and converges to \begin{equation}\label{eq:weired_equation} k^\xi = k_1\times k_2 \times c \times d, \end{equation} where $c$ and $d$ ...
5
votes
1answer
148 views

How to replace $$ .. $$ by \[…\] [duplicate]

Possible Duplicate: replace often used Tex-Literals ($ and $$) for math regions into \( or \) and \[ or \] When I started using latex, I wrote mathematical formulae separated from ...
1
vote
1answer
220 views

Unsqueeze the fraction

For the LaTeX code below, \begin{equation} Fitness(\CS)= \begin{cases} 0.5 + 0.5 \cdot G(\CS) & if\ V(\CS)=0 \\ 0.5\cdot G(\CS)-\frac{V(\CS)}{V_{Tot}(\CS)} & ...
6
votes
1answer
9k views

Numbering equations with LyX

I am using LyX with layout report for my thesis. I would like to have numbering on my equations but dont know how to do it. I'd like the first number to show the chapter and the second one the number ...
4
votes
2answers
914 views

inline equation outside margin

My inline equation falls outside the margin. I was wondering if there is any solution for that? Here is the MWE: \documentclass[12pt,letterpaper]{article} \usepackage[utf8]{inputenc} ...
1
vote
0answers
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 ...
7
votes
2answers
2k views

Nested Environ's give “! Argument of … has an extra }” error

I tried using two Environ's in a nested fashion, but I get the ! Argument of \marray has an extra } error. Any idea why this happens? \documentclass{minimal} \usepackage{amsmath,environ} ...
3
votes
1answer
246 views

I want to put bar over a alphabet, but outside in math mode. how do I do it?

I am trying to write bar symbol with some alphabets inside \begin{equation} \end{equation} like this, \begin{equation} H \bar{k} \end{equation} I have more than one alphabet to give bar. I've ...
3
votes
1answer
487 views

Displaying a really long chain of inequalities

I'm trying to enter a long chain of inequalities in math display mode. If I enter the expressions as I want them to, LyX will continue displaying them off the screen - so that they don't show up when ...
1
vote
0answers
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?
0
votes
1answer
628 views

how to use converted tex from mathtype equation in texmaker? Als

I have got the following TeX equation: \[r(t)=\frac{l}{1+e\cos \theta (t)}\] Now I could not use this in Texmaker. To show the same equation Texmaker wants $ r(t )= \dfrac{l}{ 1+e cos \theta (t)} ...
18
votes
2answers
13k 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 ...
8
votes
1answer
3k views

Altering fontsize in equations globally

I am trying to typeset all formulas in an article using \small font. If I use \DeclareMathSizes{9}{8}{6}{4}, then the size of in-line math in regular text is also changed. However, I want to redefine ...
3
votes
1answer
314 views

Link to equation and change text?

I am interested in linking to an equation - but being able to change the text. I had thought I could combine this answer and this answer, but I cannot seem to get it to work. I have attempted a ...
2
votes
2answers
631 views

How to align equations in the equation environment?

I have been looking on how to align equations and I have seen numerous examples with \align and \flalign, however whenever I try to use these in the equation environment, I get an error. I would like ...
2
votes
1answer
93 views

Centering equation on a line

I am trying to center my equation on the line using this code: \[ \ l_{12} = \frac {m_{c} c_{c} \frac {dT_{c}}{dt} + m_{s} c_{s} \frac {dT_{s}}{dt}}{m_{s}} Delta t \] but I keep getting this ...
4
votes
1answer
348 views

Systems of equations in ConTeXt

In LaTeX+amsmath, I can say \documentclass{article} \usepackage{amsmath} \begin{document} \begin{equation*} \left\{ \begin{aligned} px-y-4&=0\\ 2x-2y-6m&=0 ...
8
votes
2answers
1k views

Equation number referral doesn't appear within the empheq/array environment?

Why doesn't the equation number referral appear within the empheq/array environment ? In this example I left out the formulas within the empheq environment (the problem remains with the formulas ...
2
votes
0answers
40 views

Auto-breaking of Equation [duplicate]

Possible Duplicate: How can I split an equation over two lines I want to make my own class file having a two columns. I just want to ask if there's a possibility where we can automatically ...