{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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1answer
80 views

How to multiply a fraction

I have an equation in which inside I have a fraction. I want to put a number (3.3) that indicates multiplication. \begin{eqnarray} \phantom{0}LOD = \frac{\phantom{0}S}{N} = 0.1\phantom{0} \si{\ng/\...
2
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4answers
127 views

Two equations in align environment with bracket in between

How can I type such an equation into a LaTeX align environment, with a bracket between the two lines of the equation?
4
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1answer
95 views

Combine split and align environment

The split environment allows you to give one number to two equations, as in \begin{equation} \begin{split} a&=1+2+3+4\\ b&=5+6+7+8 \end{split} \end{equation} which gives Note that the ...
6
votes
1answer
194 views

How to place braces in multiple equations

I have the following expression: \begin{equation} \begin{aligned} %C1 \sum_{i = 1}^{m}{y^{C_1}_i} &= m\beta_0^{C_1} + \beta_1^{C_1}\sum_{i = 1}^{m}{x_{i1}^{C_1}} + \cdots + \beta_q^{C_1}\sum_{i = ...
2
votes
2answers
53 views

Aligning labels inside cases environment

I have the following code, where I have multiple cases and all need to be labelled. I tried using subnumcases, however I wanted some freedom in labelling (the $k^{th}$ case must be labelled C.k etc), ...
4
votes
3answers
63 views

Keep text with previous line - LaTeX equation and next sentence

What I am trying to do is probably very similar to the "Keep with next/previous" in MS Word. I have an equation and its description in two consecutive lines. I would like the two lines to shift to the ...
0
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2answers
26 views

increase space between brace and equation

Using the package mathtools the output of this code \[ \begin{dcases*} l_{\epsilon} = (l_ul_d)^{1/2}\\ l_k = min(l_u,l_k) \end{dcases*} \] is the following Is there ...
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0answers
11 views

flalign is not aligning equations to the left [duplicate]

I'm trying to align my equations to the left, for this I'm using $\begin{flalign*}$, but as you see, below the matrices the equations are not being aligned, how can I fix this? This is the result I ...
2
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3answers
41 views

Aligning system of equilibrium equations

I would like to align equations on the right side to this imaginary red line (to the left). Also, it would be really nice to have just one number of the equation (just like in equation environment) ...
1
vote
1answer
30 views

Undefined control sequence error

it might be a stupid question but I cannot see where the mistake is in this code: \documentclass[12pt]{article} \usepackage{amssymb} \renewcommand{\baselinestretch}{1.5} \setlength{\topmargin}{0cm} ...
0
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1answer
64 views

Trouble submitting paper to arXiv - labels except in equations

I submitted my tex file with figures to the Arxiv. References and figures are well referenced, but equations no. When I compile the tex file in my computer using, \begin{equation}\label{eq:1} ...
4
votes
1answer
63 views

How to do an equation correctly if the formula won't accept it?

I do have two formulas in my text and the only way I could make them work is in a way with a lot of escaping commands. Now the formula looks correct but whenever I try to add an equation to make it ...
2
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1answer
41 views

Brace in the same column

I have a problem with set of equations. To wit: I would like to set a braces in the same column, but I have no idea how to meki it. Belowe I enclose a code. \usepackage{amsmath} \usepackage{array}...
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0answers
35 views

larger math fonts for R Markdown

I am looking for an "easy", i.e. not package dependent way of increasing the font size of the math equations I embed in my Rmd documents (eventually compiled by knitr). As an example: $$ \boxed{P(x=a;...
3
votes
1answer
63 views

Blank lines in an equation and some other similar function

Why blank lines between equation makes error? there are a lot of commands in latex and almost for all of them these blank lines are not important, but why in this case is important and is there any ...
2
votes
1answer
30 views

Positioning of equation and variable explanation

I am looking for the following: The left part is a formula, middle part is text (e.g. 'for mode') and the right part is a formula again, describing a variable in the left formula. How can I fit ...
4
votes
2answers
34 views

How to Split equation in aligned environment

I have two sets of equation in aligned environment. The problem is that one of the equations (As shown in slide below) is too long to fit on a single line. I want to split this equation without ...
2
votes
1answer
35 views

multiple equations on same line with \midrule not extending to both equations

Hi I want to solve a system of linear equations where you can see the cancellation and I've done that but I want to know how I can put another equation to the right of what I just solved. This is what ...
3
votes
2answers
80 views

How to put box around a single equation in align environment?

I want to put a box around one of my equations in aligned environment. I am looking to do something similar to Attractive Boxed Equations, but the code only caters for individual equations. Here is ...
8
votes
2answers
2k views

What is the meaning of $$$ in LaTex?

I want to know the meaning of the triple $ in my document. \documentclass[12pt]{article} \usepackage[letterpaper]{geometry} \geometry{top=1.5cm, bottom=2.5cm, left=3cm, right=3cm} \usepackage{...
5
votes
1answer
71 views

How to align two sets of equation separated by some text in a beamer slide?

I want to align the two set of equations on same slide. I found a similar post How to align a set of multiline equations but there the equations do not involve text as in this case Here is my MWE \...
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4answers
167 views

How to align equations with integrals and “subject to” equations

I have a long expression (maximization problem) which I force down to the next line using //. I also have two functions ("subject to") which I want to place underneath. I use & to make the ...
1
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0answers
31 views

What kind of images does Latex generate? [closed]

Suppose I view a Wikipedia page that has math formulas on it. They use Latex, with the "math" tag in angle-brackets. The next step is to send it to my Kindle (Amazon provides users of Chrome with an ...
3
votes
1answer
41 views

How to keep some equal signs aligned in flushed right equations

\begin{align*} 2\sin2\theta+1=0\\ \sin2\theta=-\dfrac{1}{2}\\ \alpha&=\sin^{-1}\left(\dfrac{1}{2}\right)\\ &=\dfrac{\pi}{6}\\ 2\theta=\pi+\alpha,2\pi-\alpha,3\pi+\alpha,4\...
1
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1answer
47 views

Equations not working in beamer

I'm trying to include equations into my beamer presentation, however every time i do it says that it has exited with errors. I have tried using \begin{equation} and \end{equation} and have also ...
0
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1answer
22 views

How to redefine \eqref output, keeping numbering but changing text and brackets?

I am looking for a macro to redefine \eqref{} output. Resulting in: (equation: 1.1) Thank you.
3
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4answers
48 views

multi line equation with cases

I want to write the above equation I tried \begin{align} d(0,0) &= e(0,0) \\ d(0,j) &= e(0,j) + d(0,j-1) \text{$j = 1,2,..., N_\tau -1$}\\ d(i,0) &= e(i,0) \text{$...
1
vote
2answers
43 views

How I can refer multiple equation in Latex?

Suppose, I want to refer multiple equations (1), (2), (3), (4), (5) and (7) so that they appear as (1-5, 7): \documentclass[fleqn,preprint,10pt]{article} \usepackage{amsmath} \usepackage{amssymb} \...
2
votes
1answer
28 views

Uneven vertical space in tablenotes when using `subdepth`

When using subdepthfor nice looking equations, the tablenotes in threeparttable get messed up. Any idea how to get even vertical space between items in tablenotes? Have tried using \usepackage[low-sup]...
1
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0answers
78 views

A specific Math equation!

I have tried to look for how to make equation as it is shown in picture, can anyone help to show a link for math equations like this one.
2
votes
1answer
60 views

How to make vertical bar in equations?

When I try this: \begin{equation} \overline{bel}(x_{t}) = p ( x_{t} \textbar z_{1:t-1} , u_{1:t} ) \end{equation} I get following warning: Command \textbar invalid in math mode on input ...
3
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1answer
41 views

split equation in eqnarray

\begin{eqnarray} F_{\theta}=[(2m+M)R^2+2J_w+2n^2J_m]\ddot{\theta}+(MLR \cos ( \psi - \zeta) -2n^2J_m) \ddot{\psi} -MLR \dot{\psi}^2 sin ( \psi - \zeta) + (M+m)g \sin \zeta \label{eqn13}\\ F_{\psi} =...
1
vote
1answer
32 views

How to realize curvate bracket after which two formulas follow in vertical order [duplicate]

I would like to write a equation which defines quantity f(X) to be a if X>0 and b else. I would like to do so writing f(X)= followed by a curvate bracket and then a if x>0 and b else aligned ...
0
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0answers
29 views

How do I know a numbered equation is called later or not? [duplicate]

I am using amsart package to write my thesis. I use command like \begin{equation}\label{...} ... \end{equation} to write my equation, and hence all equations are numbered and labeled. There are ...
4
votes
2answers
58 views

Top alignment for multicolumn equations set

I need to align following equation set to top: \begin{equation} \begin{aligned} S_{1} &= \frac{11.0}{24.1} &= 0.46 \text{ пкФ}/{\%}; \\[1em] S_{2} &= \frac{25.6}{32.3} &= 0.79 ...
0
votes
1answer
43 views

How can I put a value to the right of a chemical equation? [duplicate]

I am trying to figure out how to put a value (e.g. ∆H>0 or E_cell=1.10 V) to the right of a chemical equation. For example \ce{Cu ^{2+}(aq) + Zn(s) -> Cu(s) + Zn^{2+} (aq) E_{cell}^\standardstate ...
1
vote
1answer
43 views

Change the font size of the equation in latex

How can i change the font size of both equation individually? \begin{eqnarray} \begin{split} % Change the font size r_j &= 2 \\ &\quad + 4 \end{split} \\ % Change the font size r_j = 2 + ...
4
votes
2answers
50 views

how to place the equation number in the right

I wrote the equations and I manage to align the regression, but the numbers are showing below the regression. How can I align it in the right? this is the code I'm using: \begin{equation} \label{...
6
votes
2answers
295 views

How to control the size of math symbols in an equation?

I've been struggling with this task for some time now. Basically I want to make this: Into something like this: I've tried \mathlarger from relsize package, but it simply didn't work (no effect ...
4
votes
2answers
49 views

Automatic label formulas with (*) and (**) instead of numbers

As in the title, I would like to label formulas in certain environments (such as proofs) using (*), (**), ... instead of numbering. Is there a way to achieve this?
3
votes
2answers
79 views

How to customize the \label{}

I would like to change the presentation of the command \label{}. More precisely for the theorems of ntheorem. In fact I created a theorem called "assumption", and I would like to refer an assumption ...
1
vote
1answer
25 views

Placing parts of circuit (capacitor…) relative to each other. Using names of circuits parts to place mesh arrows “intuitively” with “controls”

This question is continuous my another. Because of my reputation I can't add comments to answers. So I use the chance to thank John Kormylo for his answer to my initial question. Also sorry for my ...
2
votes
1answer
43 views

Block of equations with only some being subequations

I'm trying to make a block of equations where the first two are standalone equations, and the second two are subequations, ie X=XXXX (1) X=XXXX (2) X=XXXX (3a) =XXXX (3b) I'm using the amsmath ...
3
votes
1answer
42 views

Making my equation flush left

I am trying to make the first 3 lines of this equation flush left. How can I do so? Also, is there an easier way to enter the parentheses and have the size I want? If I don't use the \left( and \right ...
2
votes
1answer
39 views

Small integral symbol

I can't understand why an integral of a fraction doesn't resize the integral symbol by itself. $\text{SAR}=\int_{campione}\dfrac{\bf{\sigma}(r)|\bf{E}(r)|^2}{\bf{\rho}(r)}dr$ I saw this Big ...
2
votes
0answers
59 views

Is there a more typographically-satisfying bigints package?

I found the bigints package but as its documentation shows, the symbol is simply scaled up in size which leads to a much thicker stroke: Is there a package that deals with this properly, or failing ...
3
votes
1answer
81 views

Equation counter does not work

My references for equations do not work. The numbers on the right side to the equation are fine, but the references all show 3.1.2 (which does not exist...) I show you my complete header with a ...
1
vote
1answer
59 views

space before \_ in Equation

\begin{equation} \begin{aligned} CPU\_time=\sum\limits_{i}^{n_1}{T\_int_{i}}+ \sum\limits_{}^{n_2}{T\_exe_{i}}+\sum\limits_{}^{n_3}{T\_gc_{i}} \end{aligned} \label{eq:cputime} \end{equation} will ...
0
votes
0answers
33 views

Underbracing an equation with tikz in a sub document, which is thereafter included in a main document

Notice, that for the following I have a master (.tex) document which includes the several parts/chapters (.tex). In one of the included chapters, I have an equation (with a square root) that I need ...
1
vote
1answer
38 views

Make numerator and denominator terms of \frac bigger

Is there a way to make \frac{}{} bigger? By default looks like all equations keep the same size. That means if I write x=\frac{a}{b} x has the right size, while frac is a little bit smaller. I want ...