{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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22
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3answers
5k views

Guidelines for typesetting fractions

I realize that this question is to some extent subjective. However, I suspect that there are some common standards regarding how fractions ought to be typeset in mathematics. The guide Mathematical ...
0
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0answers
27 views

reducing font size for inline equation

I am using ieeetrans template. I am inserting an equation in an algorithm. The equation is a little bit longer than the width of one column. So I am thinking about reducing the font size of the inline ...
1
vote
0answers
40 views

How to create the long equations in two columns paper [duplicate]

The equation I want to display is too long to put in one column, so I prefer to make it in the whole two columns like the following format of equation(47) including the two lines above and under ...
5
votes
3answers
93 views

Arranging equations neatly in rows and columns with a single numeration for all

Say I want to write a set of equations in a systematic way, more like the ones in a matrix but without the matrix parenthesis on the left and right-hand sides. More like: A=1 A=2.5 C=8 B=9 B=0 A=2 ...
3
votes
1answer
58 views

Incompatibility between lineno and equation*

In addition to a lot of others incompatibilities, also there is one between lineno and equation*. Is there any chance to have the lineno package updated to solve this problem? Does anybody here knows ...
5
votes
1answer
38 views

cleveref and aliascnt: referring to subequations and inequalities in a smart way

Preliminary Remark: A document may contain labels referring to equations and subequations, respectively. Moreover, some of the equations may actually represent inequalities. When using the cleveref ...
6
votes
1answer
44 views

Definition with numbered equation

I am trying to make a definition with two numbered equations. But the space between definition and equations is big. I guess I have not to separate definition and equation environment. ...
0
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0answers
31 views

ieee trans long equation with matrix

I have a long equation to type. I just simply used \begin{equation} \end{equation} but the equation shows in two columns and the right part overlaps with other content. I am new to write with ieee ...
7
votes
2answers
3k views

Equations and defining equation variables

I have a main equation that should be numbered and now I want to define the variables of the equations which may contain another set of equations. For example please have a look; code: \begin{align} ...
1
vote
1answer
47 views

How can I make the appendix one column to fit my very long equations? And also keep equations from running off the page?

The rest of the document is two columns, just the appendix needs to be one column to fit the equations. Here is the code, any help greatly appreciated! ...
6
votes
2answers
100 views

Placing the equation number in the left-hand margin

I use \renewcommand{\theequation}{{\hspace*{-3.05cm}\thesection.\arabic{equation}}} to move my equation numbers into the margins (corporate design), it looks like this: The problem is that ...
2
votes
1answer
33 views

Solve system equation

I want to write the step by step solution of a system equation in LaTeX. But, dispite I can write the system equation, I don't know how to write at the right side of this system equation the steps of ...
3
votes
5answers
180 views

Vertical and horizontal spacing in a two-line equation

I wrote the following: \begin{equation} \begin{array}{lcl} w_{\frac{mn}{m+1}-\rho} & = & m(\dfrac{n-2}{1+\varepsilon_1})(m^{-\frac{mn}{m+1}+\rho}){{n-2} \choose {\frac{mn}{m+1}-\rho}} ^{-1} ...
1
vote
1answer
29 views

Multiline equation environment pointing at changes from one line to the other?

Does there exist a multiline equation environment which shows the changes from one line to the other? I am thinking of an environment that would take inputs like E[d] & = ...
7
votes
2answers
116 views

Put a dot above a bold symbol in an equation?

I know this is a really basic question, but I'm a newbie with Latex. How can I put a dot (to indicate the time derivative) above a bold symbol in an equation? When trying $\dot \mathbf{x}$, I get an ...
3
votes
1answer
36 views

Stairs-like multline

The multline environment alignes the first line to the left, the last one to the right, while all the lines in between are simply centered. The result sometimes looks not satisfying, for example, when ...
5
votes
3answers
230 views
3
votes
1answer
110 views

LaTex Error: Environment equation* undefined

I am trying to work on a Poisson problem (BVP) which looks like the pic above. However, when I executed my codes as below, the compiler showed that "LaTex Error: Environment equation* undefined." ...
8
votes
3answers
14k views

Big \sum instead of small \sum in array environment

\begin{align*} \begin{array}{c} \min \: A = \min \: \sum_{i\in B} C_i \\ \ \min \: D = \min \: \sum_{i\in B} \pi_i \cdot F_i \end{array} \end{align*} How can I get i \in B below the \sum symbol ...
3
votes
2answers
58 views

Align definition of variables of an equation right (not next to the equation)

this question has been asked before but I never saw a "perfect" solution for this problem. I use the equation block for my equations and I want the definition of the variables to show at the right, ...
12
votes
3answers
5k views

Big forward slash in math

I have a equation in from of a=VERYBIGSTUFF / VERYBIGSTUFF And I would like to have a "verybig" forward slash in the middle of them. I dont like \frac mode, as I would like to have them ...
2
votes
3answers
80 views

Shrinking or splitting some equations in a group of equations

I have a group of equations, such as /begin{gather} Eq1 // Eq2 // Eq3 // Eq4 /end{gather} Unfortunately, some of the equations in the group are too long to fit on the page. For equations that are ...
2
votes
0answers
9 views

Tikz \pmb results in 2 overlapping letters [duplicate]

For some reason, there seem to be 2 overlapped images of letters inside \pmb{} of the tikz draw feature. Here is a MWE \documentclass[11pt]{article} \usepackage{amsmath} \usepackage{tikz} ...
7
votes
2answers
262 views

How do I color one line of a display equation?

I want to color only one line of this display equation: \begin{align*} i_{fb} &= - \frac{v_o}{Z_F} \\ F(s) = \frac{i_{fb}}{v_o} &= - \frac{1}{Z_F} \\ \color{red} F(s) &= - \frac{1 + ...
3
votes
3answers
120 views

Aligning 3 equations with cases and equation number

in the equations shown below I would like to have the 'if' texts aligned - right now this does not work due to the use of three independent array environments. Thanks!! Here is the code to ...
0
votes
1answer
21 views

Break up long equation with square brackets into multiple lines

I'm having trouble splitting the portion of the equation within square brackets into two lines. How can it be done? \documentclass{article} \usepackage{amsmath} \begin{document} \begin{align} \ ...
0
votes
1answer
54 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 ...
2
votes
1answer
47 views

Undefined control sequence. …\infty} F{_i} \right ) = \sum_{i=1}^{\infy Underfull \hbox (badness 10000) in paragraph Command \' invalid in math mode

What's wrong \begin{equation} H^{s}\left ( \bigcup_{i = 1}^{\infty} F{_i} \right ) = \sum_{i=1}^{\infy} H^s(F_i) \end{equation} Undefined control sequence. ...\infty} F{_i} \right ) = ...
0
votes
1answer
36 views

Putting text next to an equation without moving the equation to the side

I want to write something like: \begin{equation} f(x)=y \quad \text{(This is the equation lala)} \end{equation} But this essentially moves the equation out of the center. I don't want the equation ...
1
vote
1answer
29 views

Aligned multiline equations

I'm using an align environment in a long derivation. Each equality is aligned at the equal sign. Individual lines are too long to fit the page, so I need wrap them. However, I don't just want them to ...
2
votes
1answer
24 views

New gather and equation environments with a single counter

So I've created a new equation-style environment with an associated counter to track a certain set of definitions I introduce in my document: \newcounter{defcounter} \newenvironment{defeq}{% ...
8
votes
2answers
606 views

Change the size of only a part/subset of a single equation

For example, I'd like to do: $Q^{r<1}$ but with the r<1 having a much smaller font size than the Q. Of course r<1 will naturally have a smaller size since it is a superscript, but I want ...
2
votes
1answer
55 views

parbox vertical alignment after brace in equation

In the code below, I am trying to center the parboxes vertically, relative to the braces. I have been playing around with the position argument, to no avail. Can you help me with this? Thanks in ...
3
votes
1answer
29 views

How can I label an equation as (*) [duplicate]

Here is the code which has an equation in the form of \[... \]: \documentclass[12pt]{report} \usepackage{braket} \usepackage{amssymb} \usepackage{amsmath} \begin{document} \textbf{Proof-} Every ...
268
votes
8answers
24k views

Why is \[ … \] preferable to $$ … $$?

I've heard that you should use \[ ... \] for displayed equations instead of $$ ... $$, but why is that? I'd assumed that it's so that you can more easily tell which are starting and which are ending ...
7
votes
2answers
79 views

French equation numbering using bis, ter, etc

As a corollary to my other Question "French section numbering using bis, ter, etc", I am looking for a way to number equations by appending "bis," "ter," and other latin suffixes after the equation ...
2
votes
2answers
57 views

How to adjust multiple equations in a single line in latex?

With reference to following figure, I want to adjust the last line (which has two terms) after the block of three equations inside aligned structure, so that all equations appear in a single line ...
4
votes
2answers
44 views

label doesn't work inside gather*

I am successfully using gather* to centre align my groups of equations. However, if I do: \begin{gather*} \rho=a*b \\ \alpha=2*\rho. \label{eqn_one} \end{gather*} It shows two ...
0
votes
0answers
18 views

Writing out arithmetic steps [duplicate]

I'm doing a quick blurb on binary arithmetic and I'd like to do an align sort of thing to display the steps in one nice diagram. The code I have currently is: \begin{align} 1001& \nonumber \\ ...
5
votes
3answers
40 views

Howto place footnote next to equation

Consider the following fragment ... To fulfil this requirement, $y_\infty$ is set to the lowest value of $y\left(\tau_\text{max}\right)$ and $-\max\left|y\right|$ multiplied by ...
2
votes
1answer
94 views

LaTeX equation is always on one page

I have a very large equation of the form \begin{align} I(a,b) &= \int_{[a,b]} x^d\lambda (x) \\ &= \frac{1}{10^b a!}\int_{[a,b]} x^6\lambda (x) \end{align} The only ...
2
votes
2answers
33 views

long equation in two column paper (the mathtool doesnt work.)

I have an equation which is too long for a two-column paper. the code that I write is like below : \begin{equation*} \begin{split} J=\frac{\displaystyle -l_2}{\displaystyle ...
2
votes
2answers
69 views

How to put a long equation spanning two columns while using IEEEtran?

I am using the IEEEtran document class to generate my PDF file so that it has two columns, but now I get a long equation and I cannot put it into just one of the two columns. Thus I used \onecolumn at ...
2
votes
1answer
42 views

Labelling the outside of a large matrix

I've been struggling to fit a large matrix on a page, and have finally managed to fit it in, although I had to make the entries very small. Now I want label the rows and columns of the matrix. There ...
3
votes
1answer
67 views

Horizontal alignment of tikzpicure in an equation

In this minimal working example, \documentclass{article} \usepackage{tikz} \begin{document} \begin{equation} \lambda = \begin{tikzpicture} \draw(1cm,0) -- (2cm,0); \draw(2cm,0) -- (3cm,0); ...
5
votes
2answers
71 views

How to set the numbering of an equation set to align bottom?

How to set the numbering of an equation set to align bottom+right? For example, in following code. The default numbering will be placed on the same row as S. But is it possible to change it to row 3 ...
3
votes
2answers
39 views

Display fractional formula nicely

I've tried using the split environment as well as dfrac, however, I can't seem to be able to make this equation look nice at all. \documentclass{article} \usepackage{amsmath} \begin{document} ...
2
votes
1answer
45 views

Problem in writing the equation: missing delimiter (.inserted)

\documentclass{article} \usepackage{...} %packages your code nees \begin{document} \begin{align} T\triangleq &\int_{0}^{\infty}\frac{\gamma^{k+m_2-1}{\rm ...
9
votes
3answers
394 views

Arrow pointing to subscript in equation

I'm writing an equation for the components of a contracted tensor. I want to label one of the lower (covariant) indices with the text "rth positon," and have an arrow pointing to it from below. Any ...
1
vote
1answer
31 views

Horizontal list inside equation

I'd like to have a horizontal list with roman enumeration (i.e. i), ii), iii),...) inside an equation. The idea is for each item of the list to be individually referenceable. This is what it should ...