{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
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2answers
69 views

Multiple results for equation

How do I define a equation e.g. x +y that shall be true for e.g. <5 and >0 in one equation? I was thinking of using a large brace, but I can't find any example of how to achieve this.
2
votes
2answers
25 views

How to place the subscript under two summation signs in a fraction?

I would like to place a subscript under two summation signs in a fraction, in an equation. The code showed works when it is not in a fraction, but as soon as I use it in a fraction the subscript is ...
0
votes
1answer
33 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) = ...
0
votes
1answer
68 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.
4
votes
1answer
111 views

How to decrease space above and below displayed equations [duplicate]

This is my code. \documentclass{article} \usepackage{amssymb,amsmath,amsthm,enumitem} \begin{document} How can I decrease vertical space between text above and below \$\$ \ldots \$\$ ? $$x^{2}+y^{2} ...
3
votes
1answer
53 views

Increase equation resolution in TeX4ht using accessible images or typeset text

When TeX4ht compiles my latex code it generates a png of my equation and includes this in the html file. Until a better alternative for this comes along I am quite happy with this way of ...
0
votes
0answers
15 views

special char in a latex equation [duplicate]

I don't know how to make this special char in latex equation, if anyone could please advise:
2
votes
2answers
58 views

List of equations, including equation contents and caption

I would like to automatically generate a list of equations present in the document, which includes the equation itself. Here is a MWE: \documentclass{article} \def\caption#1{} \begin{document} First ...
5
votes
2answers
104 views

Text within an equation

I am trying to achieve the equation shown in the figure attached below I am not getting the desired result in terms of the alignment of the text between equations and the main text. I have tried ...
2
votes
1answer
38 views

Help formatting really long equations

I have some really long differential equations and I'm having trouble figuring out how to format them the way I want. I want them to look liek this: dx/dt = blah blah blah blah dx/dt = blah ...
1
vote
1answer
68 views

Crop the image of LaTeX formula

How to automatically crop the white space (maximum thickness horizontal/vertical white border) around the formula in image, generated, say, by means of some of online LaTeX formula editors (actually I ...
5
votes
2answers
143 views

add vertical space between equations

I am using the following code to combine two equations with one number in parentheses but the two equations are very close to each other and using '\vspace{} not working How can i add a vertical ...
1
vote
1answer
81 views

Shorthand for \begin{eqnarray*} … \end{eqnarray*}

To align a long string of symbols I usually use \begin{eqnarray*} ... \end{eqnarray*}. I would like to know if there is any convenient alternative to this environment. For example, I know that ...
2
votes
2answers
72 views

Move up a text in equations

I don't know if the title explains much what I want to say, but here it is: $$ \frac{\text{XXXXX }}{\text{YYYYYYYY}} \text{(ZZZZZZZZZZZZ)} $$ I want to move up the ZZZZ sentence so that it is ...
1
vote
1answer
50 views

How to put equation numbers in these equations while keeping them aligned with the “equal to” sign

I want to put equation numbers on these three equations. also I want them to be aligned with the"=" sign. \documentclass[12pt,a4paper]{article} \usepackage[a4paper, total={6in, 8in}]{geometry} ...
2
votes
1answer
63 views

equation exceeds the page border

I have the following equation which goes behind the page border: \begin{equation} P(word|name_i)= \frac{1}{\sqrt{2\pi\sigma_i^{2}}} \times ...
2
votes
1answer
31 views

\Aboxed with multiple & in align* environment

\Aboxed command in mathtools is used to box an equation with only one alignment operator inside. But how to box an equation with multiple align operators ? For instance, in the following equations, ...
4
votes
2answers
41 views

Control the size of an equation (in display mode)

There are several ways to show an equation. I'm trying to put a big equation in display mode (i.e.: \[ {\equation} \]) and to keep it's dimensions within the size that is reasonable, using adjustbox. ...
3
votes
2answers
85 views

Equation on same line as proof

If a proof consists of only a single, less-than-a-line-long equation, there is no reason to put the \emph{Proof.} and the equation not on the same line. How can I tell LaTex this? Here is a minimal ...
2
votes
1answer
64 views

Align equation which floats to centre

I have this code (which is based in this answer): \[ \SI{0.2}{\micro\second} = (1 - FR) * \SI{0.1}{\micro\second} + (\num{0.3} * FR) * \SI{8}{\milli\second} + (\num{0.7} * FR) * ...
3
votes
1answer
126 views

Math equation eating whitespaces and operators

I have this: $0.2 \mu sec = (1 − FR) * 0.1 \mu sec + (0.3 * FR) * 8 millisec + (0.7 * FR) * 20 millisec$ \\ and the result is that all whitespaces are gone, as well as the first minus symbol for ...
7
votes
3answers
158 views

Box with subtext in an equation

I would like to do something like the boxes in the equation below But I have no idea how to implement this in Tex. Thanks in advance!
3
votes
2answers
66 views

Subsequential numeration of theorems and equations

I'm writing an essay in Latex and I want to do the following thing, which I'll explain with an example. Suppose that I have a theorem 1.1 and inside it I have to specify an equation. Is there a way in ...
7
votes
1answer
74 views

Switching from equation to align changes horizontal width

I am puzzled by why changing from an equation environment to an align environment should change the horizontal width of my equation. Below I provide an example. Sorry, it is not a minimal working ...
5
votes
2answers
97 views

Aligning long set of equations

I'm trying to make a big series of equation equalities in LaTeX, however, my equation just keeps going on out of the page width. Here is what I have: $$ ...
3
votes
1answer
70 views

Subequation behavior for ungrouped equations?

I have several equations at different places in my paper, and I want to number them as I would using subequations, e.g. 1.a, 1.b, 1.c, 1.d. The problem is that they do not follow each other ...
2
votes
2answers
52 views

Two Different Equations with aligned does not aligned within each

I have two different formulas where the first one doesn't aligned with the second one. I first tried align but it gave me an equation number for each line. Then I did ...
8
votes
5answers
358 views

Aligning a system of linear equations

I want to figure out how I can align a system of linear equations very nicely. At the moment I am using the following command: \systeme{x_1=2r + s -t,x_2= r, x_3=-2s +2t, x_4=s, x_5=t} But this ...
4
votes
2answers
154 views

Numbering equations as “page number.equation number”

How do you get equations numbers of the form "page number.equation number”. Is there a way to set things up so the equation command numbers this way automatically?
2
votes
3answers
59 views

Center inline equations

I want to be able to center inline displaystyle equations (I've seen this done in some math books). For example, with enumerate: 1) [centered equation] or with ...
5
votes
2answers
298 views

\left and \right brackets way too huge!

I have an Equation written with the following code: \vec{B}(\vec{m},\vec{r}) \sim \left(\frac{3\left[\begin{pmatrix} 0\\ 0\\ m \end{pmatrix}\cdot \begin{pmatrix} \sin\theta\cos\varphi\\ ...
5
votes
1answer
200 views

How to output the following equation?

What is the code to produce the following?
0
votes
1answer
49 views

I want to make an equation, but I can't get what I want on the correct lines

$$\frac{\partial u}{\partial x}(x,y)=f(x,y,u(x,y))$$ $$\frac{\partial u}{\partial y}(x,y)=g(x,y,u(x,y))$$ $$u(x_0,y_0)=u_0$$ I want to write this but as an equation, I have tried \begin{equation} ...
3
votes
2answers
69 views

How to break lines of text in equation?

I have a problem with breaking lines in equation environment, can't really omit the text. I tried using \mbox and \parbox but they don't really give the effect I'm looking for. example: ...
5
votes
1answer
101 views

How to add a (*) into the align environment

How can I add a (*) to the align environment with some regular equation in the center? It's so I can type afterwards, "By (*), ..."
3
votes
1answer
47 views

Equation left margin

I have equations inside an environment which has a larger left-margin than the main text (analogous to an enumerate/itemize environment, implemented with the changepage package's adjustwidth ...
0
votes
2answers
47 views

How can I start numbering my equations from 8.1?

I would like to start numering my equations from 8.1. I'm using the equation environment. Tried using \setcounter, but it starts from 8 instead of 8.1. I also don't wanna use \tag. How can I do this? ...
5
votes
2answers
156 views

Number of Equation: 1, 1a, 1b

Following Problem: I have a PDE and two boundary conditions what i actually want is: PDE (1) BC1 (1a) BC2 (1b) and what i have is: PDE (1) BC1 (2a) BC2 (2b) is there something which provides a ...
1
vote
1answer
28 views

Using array inside alignat to create equation legend

I want to describe the parameters in used in the equation in two columns below the equations. Something like this **** = ******* *** = ********** - - | A: ...
0
votes
0answers
25 views

squeezing the equation fonts [duplicate]

I have a set of equations which are defined below \begin{figure*}[h] \label{eq1} \begin{alignat}{2} & E_{\mathrm{access}} && = E_{\mathrm{read}} + E_{\mathrm{write}} ...
3
votes
1answer
47 views

Multiple subsequent connected equations exceeding line length

How to break a number of equations like in the following example? \begin{align} \lambda \cdot \lambda \cdot \lambda \cdot \lambda \cdot \lambda \cdot \lambda\\ \beta \cdot \beta \cdot \beta ...
3
votes
2answers
80 views

Equation broken into two (centered) lines with equation number in the middle of both lines

I would like to know how to break a long equation into two lines and have both lines centered. Besides, I would like to have only one equation number in the middle of both lines. Here's a MWE: ...
2
votes
1answer
55 views

Too wide line spacing?

Following the likelihood function \begin{equation} \prod_{i=1}^n E \lbrace B_{k_{i_1}} (x_{i_1}) B_{k_{i_2}} (x_{i_2}) \rbrace E [ A^2 \lambda_1^* (x_{i_1}) \lambda_2^*(x_{i_2}) \exp ...
1
vote
2answers
75 views

Space between variables in a large equation and reduce size of powers?

\begin{equation} \resizebox{.8\hsize}{!}{$<\mathscr{F}>=\frac{\int_\Gamma d^{3\!\!N}\!\!\!q\, d^{3\!\!N}\!p\, \rho(q, p) \mathscr{F}(q, p)} {\underbrace{\int_\Gamma d^{3\!N}\! \!\!q\, ...
1
vote
1answer
47 views

equation labels for reference

How can I reference to the equations in the alignat? The equation set is \begin{alignat}{2} \sigma_1 &= x + y &\quad \sigma_2 &= \frac{x}{y} \\ \sigma_1' &= \frac{\partial x + ...
5
votes
2answers
81 views

span and align large multi-line equations

I have a set of lengthy equations and I want to span them on two columns. The code I wrote is \begin{figure*} \label{eq:eq1} \[ E_{\mathrm{access}} = E_{\mathrm{read}} + E_{\mathrm{write}} ...
3
votes
2answers
71 views

Change the size of one equation from a group of equations

This is the latex code that I am using to create three equations. I want to reduce the length of the second equation to fit in a single column. How can I resize or scale only the second equation in ...
5
votes
2answers
85 views

Multiline regression equation in Latex

Noob here. I'm trying to put together a multiline multivariate regression equation in Latex and am having some issues. $ {Unit.Sales_t} = \alpha + \beta_{1} Date_{t} + \beta_{2} Cable.TV_{t} + ...
0
votes
0answers
12 views

How to prevent font size in condition equation from getting changed [duplicate]

Below is a snippet of my latex source that prints an equation. In the attached image output, I see a significant decrease in font size in the part of the equation that is represented as in the ...
3
votes
2answers
113 views

Align Multiple Equations with multiple expressions

Here what i have done so far. I want the middle space to reduce a bit. \documentclass[10pt]{article} \usepackage{amsmath, amsthm, amssymb} \begin{document} \begin{align} \Vert\mathbf{R}\Vert_F^2 ...