{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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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
891 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
242 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
481 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
245 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
617 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
2k 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
311 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
624 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
92 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
346 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 ...
8
votes
2answers
284 views

How do I suppress the whitespace above an equation block at the page top?

How do I suppress the whitespace above the equation block at the page top ? It is added to the top margin, and I don't want that to happen. I know that \abovedisplayshortskip controls this for the ...
1
vote
2answers
664 views

Spacing of consecutive equation versus a single gather

I know the spacing produced by the following two approaches is slightly different. So my question is which one should I choose? Is it about personal preference? With 3 consecutive equation ...
4
votes
5answers
430 views

Double solution in equation mode

I Want to do give two solutions to an equation, and do something like that: / 0 If c = 0 => x = \ -b/a Edit: I've tried the cases environment ...
12
votes
1answer
7k views

LaTeX in CorelDRAW

What is a good way to get LaTeX formulas into CorelDRAW figures? I will provide a solution below, based on a rather old macro adapted to work on 64 bit systems as well as 32 bit - it works well, but ...
0
votes
1answer
86 views

How do I set the margins of a centered math expression? [duplicate]

Possible Duplicate: How to globally change the spacing around equations? For example, this is a paragraph \[ \frac{1}{2} \] this is a paragraph as result, I want something like this is ...
4
votes
1answer
199 views

Which display-style math environments allow both new lines and respond to additions of infinite horizontal space?

Consider the following example: \documentclass{article} \usepackage{amsmath} \begin{document} This is a really long line of text to show where the margins of the page are. This is a really long line ...
1
vote
1answer
909 views

Missing number treated as zero in eqnarray*

The following eqnarray* environment \begin{eqnarray*} [v,v] &=& 0\\ [v,v+0] &=& 0\\ [v,v] + [v,0] &=& 0\\ 0 + [v,0] &=& 0\\ [v,0] &=& 0\\ [0,v] = -[v,0] = ...
5
votes
2answers
860 views

Alignment problem with large subscript in sum

This MWE exhibits the problem I have: \documentclass{article} \usepackage{amsmath} \usepackage{mathtools} \begin{document} This is a really long line of text to show where the margins of the page ...
5
votes
2answers
552 views

Positioning of image within an equation

I have the following problem: I would like to have images of Feynman diagrams as part of equations. Using \newcommand{\imineq}[2]{ \includegraphics[height=#2ex]{#1}} I had success in as far as ...
4
votes
2answers
4k views

How can I add an explanation under an equal sign in Lyx (/Tex)?

When I write some equation with pen and paper I usually do something like in the following picture: Is there a way to do something similar in Lyx (my working environment) /Tex ? That is: having an ...
2
votes
1answer
285 views

How to make tex appear in the middle of a line in Lyx?

When I write, for example, in Math.SE and I want some equation to appear in the middle of the line I just use $$ instead of just one dollar sign. How can I do something similir in Lyx ? doing ...
6
votes
3answers
499 views

How to keep table and equations to the left side?

\documentclass[12pt,a4paper]{article} \usepackage[utf8]{inputenc} \usepackage{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \begin{document} First find how many days between July 22 and Nov 4 ...
4
votes
1answer
462 views

How can I align equations to the left?

I looked up a template to put my homework in a nice formatting, but I can't get it to look the way I want. More specifically, I want to: Align to the middle whatever is after: \hspace{1in} .... (I ...
5
votes
1answer
2k views

Inserting a picture in an equation [duplicate]

Possible Duplicate: Can I insert an image into an equation? Is there any method to insert a picture in an equation? I am trying to write an equation where one of the elements of the ...
8
votes
2answers
3k views

Underlining an equation in an align block

I'm trying to set up a system of equations and want to underline the last equation, but can't figure it out. Here's what I have: \begin{alignat*}{4} &F_n &- mg &- F_a\sin 32^\circ &= ...
15
votes
2answers
4k views

Align Equations Over Multiple Tabular Rows

I'm trying to set up a table with some equations in it, however I would like the equations on multiple rows to be aligned properly. So far I have \begin{tabular}{cc} \hline \multicolumn{1}{l}{Header ...
5
votes
1answer
1k views

bigger parentheses in equations

I have the following TeX equation: r = (I_n - (.85) M^T)^{-1} (\frac{1 - (.85)}{5}) \cdot 1 \\ I want bigger parentheses around the term (1-(.85)/5), how can I achieve this? How can I get large ...
1
vote
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?
13
votes
2answers
2k views

Labelled in-line equation

I searched the internet but I cant find a solution for my problem. I want a numbered and labelled equation inside the text.Something like: The equation a+1=b (2.1) does ... The equation a+1=b ...
9
votes
1answer
6k views

itemize equations

I would like to itemize some equations but they don't appear on the same line as the bullets. Here is a code example. \documentclass{article} \begin{document} \begin{itemize} \item\begin{equation*} ...
7
votes
1answer
820 views

nested equations numbering

Is there a way of playing with align, alignat, numcases etc environments that produces aligned and numbered equations which look like this : Blahblah text before equations : A = B \iff C = D ...
3
votes
1answer
985 views

Package mathtools with showonlyrefs switch swallows parts of equation numbers in appendices

I want to use the mathtools package with showonlyrefs to achieve that only referenced equations are numbered. In the complete document I get the expected behavior for regular equations in the ...
2
votes
1answer
607 views

Number only some equations in an equation array

I have an equation array consisting of around 9 equations, however I wish to number only some of them. How can I do that?
4
votes
2answers
364 views

“Math paragraphs”: display a lot of small formulas, automatically placing line and page breaks

I have a lot of short formulas that I want to set out all together—short enough that usually two or three will fit on each line—so I would like to simply give all the formulas, and let TeX place the ...
3
votes
1answer
452 views

How to create a figure with math content

What's wrong with the following figure in the text? First, it says "amsmath: Unable to redefine math accent \vec." and then "Undefined control sequence" but neither is any helpful to me. It uses LLNCS ...
11
votes
1answer
6k views

Vertical spacing before and after equation environment: empty line or not?

The vertical spacing in front of and behind the amsmath equation environment is different whether I insert a blank line or not (im using KOMA-Script with parskip=half if this is important). I'd like ...
6
votes
1answer
1k views

Size of equations in tables

I'm trying to insert multiple equations in a tabular environment in LaTeX. My problem is simple yet I haven't found any particular solution to it: the equations displayed are too small, and I'd like ...
9
votes
2answers
420 views

How to put a list and an equation side by side

I'd like to get a list and an equation side by side so that I fill the page width better for aesthetic reasons, I've tried the following but doesn't compile: \begin{tabular}{cc} Known values: ...
6
votes
2answers
3k views

Writing equations within dgroup environment

I am having a problem with writing equations using dmath and dgroup in my article. the packages I am using are \documentclass[a4paper 12pt] {article} \usepackage{breqn} The codes I am writing are ...
4
votes
2answers
16k views

How to put a formula into a table cell

I need to insert into a table cell a formula that requires the summation sign and I apparently do something wrong and the compiler just throws me back errors and I really don't know how to solve this. ...
2
votes
1answer
773 views

Linebreaking gather (equation) environment?

Please help me to line break this gather environment. You can clearly see which line I want broken by where I've placed the split environment in my code. It's too long for 1 line. I also want it ...