Questions tagged [subequations]

The {subequations} environment provided by the amsmath package alters the numbering of equations within it to occur in a sequence such as (1a), (1b), .... This tag is not about general embedding of equations within other equations.

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26
votes
0answers
834 views

Advanced Math and braille

How does one go about typesetting math books in braille with all parenthesized subscripts and superscripts and are there braille signs for the amsmath package special symbols?
19
votes
2answers
6k views

Nesting subequations within align

subequations seems to only work outside environments such as align and equation. What if I want to preserve the alignment of the equal signs using align while also would like subequations numbering ...
12
votes
3answers
25k views

subequations align

Can anyone help me fix this problem? Actually, there is no need to have 1(b), 1(d), 1(f) and 1(h) since they are deriving from the last line. Can I have just four subequations? \documentclass{article}...
12
votes
2answers
19k 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 ...
12
votes
1answer
10k views

To have nice tabbed text next to equations?

I want I have at the moment by \documentclass{article} \usepackage{amsmath} \begin{document} \begin{subequations} \begin{equation} \omega_c = \sqrt{\omega_{0}^{2} - \mu^{2}}, \mu < \...
12
votes
4answers
4k views

Cleveref: Parentheses around references to subequations using \labelcref

Using the Cleveref package (v0.19) i have a problem with missing parentheses when referencing to subequations, using the \labelcref command. Here is a MWE: \documentclass{article} \usepackage{parskip}...
11
votes
1answer
11k views

Subequations with main equation number

I would like to have a set of equations, all under the same number, but with a "main" equation, and some other equations that follow being labelled with subnumbers, for example 1 = 1 (...
11
votes
4answers
2k views

Equation number for each row of a matrix equation

Is it possible to give an equation number to each row of a matrix equation? How could I have equation labels in the vein of subequation numbers, one for each row of the matrix equation? Here, I'd ...
10
votes
1answer
3k views

Hyperlinking problems when using subequations, hyperref and cleveref

The problem Hi. I'm currently writing my thesis and have my equations numbered within sections. I also use subequations from amsmath. When I use amsmath, hyperref and cleveref together, however, I ...
9
votes
2answers
24k views

Equations aligned center

The following code \begin{equation} \label{eq:test} \begin{aligned} A=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\\ B=BBBBBBBBBBBBBBBB\\ C=CCCCC, D=DDDDDDD\\ E=EEEEE, F=FFFFFFF \end{aligned} \end{...
9
votes
1answer
2k views

numbering parentequation of subequations

I would like to change the numbering of the parent equation of the subequations. \begin{subequations} \label{eq:Parent} \begin{align} a& \label{eq:1}\\ b& \label{eq:2} \end{align} \...
9
votes
1answer
826 views

\eqref to give reference to a sequence of subequations

Suppose I have the following code \begin{subequations} \begin{align} a+b = c \label{eq.1}\\ d+e = f \label{eq.2} \end{align} \end{subequations} I want now that upon giving the reference, it should ...
9
votes
2answers
233 views

Hyperref with align inside subequations

\documentclass{article} \usepackage{amsmath} \usepackage{showframe} \usepackage{hyperref} \usepackage{cleveref} \begin{document} Some text before the subequations. \clearpage \begin{...
8
votes
1answer
515 views

subequations: How to continue numbering within subequation?

Let's assume we want to create one subequation including four aligned single equations. The first two single equations should be numbered as 1a and 1b while the third and fourth one should continue ...
8
votes
2answers
728 views

How to avoid extra equation numbers while using subequations?

I searched through the web but I could not find the solution to my question: I try to write equation in the following format: TYPE a: A = {mathematics relation-a} 3.1 TYPE b: B = {mathematics ...
8
votes
2answers
236 views

Equation tags with subequations

Consider the following MWE: \documentclass{article} \usepackage{mathtools} \begin{document} \begin{align} \label{system} &\left\{ \begin{aligned} 30^{2} &= h_{C}^{2} + y^{2};\\ ...
7
votes
2answers
10k views

Subequation aligning using matrix

When I use multiple matrix equations in subequation, I am doing it as in the code snippet. However, when I want to align the equations with respect to equal sign, = (commented in the code), I am ...
7
votes
3answers
1k views

Enumerate equations in an array after a curly brace

How to enumerate two equations that go after a curly brace? How to make the enumeration use digits and letters, so two equations have number 1.a and 1.b? \documentclass{article} \usepackage{amsmath} ...
7
votes
2answers
323 views

Reference to subequation forces serif font; how to work around?

I'm using the subequations environment in a book in which some text is in sans serif font. When I have a reference to a subequation, the reference comes out in a serif font, even if the surrounding ...
7
votes
2answers
13k views

Typesetting an optimisation problem

I am quite new to LaTeX and want to typeset a optimisation problem. I found a very neat example at https://jcnts.wordpress.com/2009/11/11/formatting-optimization-problems-with-latex/: The only ...
7
votes
1answer
437 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
2answers
10k views

Sub-numbering equations within array

I'm using the array environment to give multiple definitions of some value, let's call it x. I can easily get a reference to all 3 definitions together, but I want each one to have its own reference. ...
6
votes
2answers
192 views

Equation numbering inside aligned placed next to an alignedat

I have a group of equations on the left hand side and a group of explanations on the right hand side. Since the number of lines in both group differ from each other I use the aligned and alignedat for ...
6
votes
2answers
3k views

subequations customize arabic numbering in aligned environment

i've a rather simple problem for the experts out there! :) using subequations, it automatically enumerates the subequations in alphabetic order. is there a way to obtain instead an arabic-...
6
votes
2answers
950 views

Alternative subequations numbering and references

I know how to have a set of equations numbered as subequations: \documentclass{article} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} \usepackage{amsmath} \begin{document} Some text here \...
6
votes
1answer
221 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 = ...
6
votes
1answer
1k views

Subequations inside align result in too wide equation

I want to create subequations and allign them such that nice 'inquality constraints' arise. My current code: \begin{subequations} \begin{align} a & \le b & \le c \label{eq:constr1}\\ d & \...
6
votes
1answer
2k views

Mathtools' showonlyrefs fails with subequations

For the code \begin{subequations}\label{eq:sub} \begin{gather} \frac{\text{d}b_1}{\text{d}z} - \im\beta_1b_1 = C_{12}b_2,\\ \frac{\text{d}b_2}{\text{d}z} - \im\beta_2b_2 = C_{21}b_1. \end{gather}...
6
votes
1answer
511 views

Subequations with more than 26 items

I need any solution to this problem. I have a subequations environment with an align environment inside of it, and then a bunch of equations. A lot of equations. Actually more than 26. When I try to ...
6
votes
2answers
1k views

How to align long subequations while breaking each one?

I want to align all the terms of two similar subequations, but the problem is that each one is long enough to need breaking. The problem is that after breaking \align tries to align every line with ...
5
votes
3answers
2k views

Interrupting and resuming subequations

As the title states I would like to interrupt and resume a block of equations that is inside a subequations regime. My problem arises when the interrupting stuff shall contain equations on its own: \...
5
votes
2answers
4k views

Label terms of LaTeX equation [duplicate]

I'm interested in labelling my latex equation, by giving the physical phenomenon contributing to the term. For instance x = f(y) + g(y). So a horizontal curly bracket to explain that f(y) is derived ...
5
votes
4answers
859 views

number a system of 4 equations in 2 lines

I have written 4 equations in two lines and I want to give a single number for all of them without changing their format. My code for the equations is the following: \begin{center} $\dot{R}=\frac{66}{...
5
votes
2answers
227 views

How to write chemical formula with branching and with labels for each branch

I would like to express a chemical reaction, which can lead to multiple products (has multiple branches). This is usually expressed using a forked arrow as in the example equation (1) below. I wrote a ...
5
votes
2answers
160 views

Indications for improving the numbering of equations contained in a system

As you can easily see from the attached image and code, I numbered each equation manually using \textbf. How do you have to proceed to have a correct automatic numbering of this type with a correct ...
5
votes
2answers
908 views

How do i `\tag` a subequations environment as a whole? [duplicate]

I have a similar subequations environment as in the mwe \documentclass{article} \usepackage{amsmath} \begin{document} \begin{subequations}\label{eq:w} %\tag{myEQ} \begin{align} a &= b \...
5
votes
1answer
130 views

Formating Maxwell's Equations

Hey y'all I am trying to format Maxwell's equations like the image below but without the box. I also want to be able to reference the labels, thanks!
5
votes
1answer
418 views

How can I type the following equations in Latex?

How can I type equations as the following format? \usepackage{amsmath} \usepackage{cases} \begin{document} % without labels for different case which I need \begin{align*} A & \Longrightarrow B ...
5
votes
1answer
761 views

Align equations with multiple subequation groups

I usually use the subequations environment with a nested alignso I can have nicely aligned equations with that neat 1a, 1b, 1c, etc. numbering and that's fine. But now I would want to still align ...
5
votes
1answer
3k views

Equation numbers for boxed multiline equations

I am attempting to set a box around multiline equations is LaTeX using the following code: \documentclass{article} \usepackage{empheq} \newcommand*\widefbox[1]{\fbox{\hspace{2em}#1\hspace{2em}}} \...
4
votes
2answers
5k views

subequations and array in braces

I need something like this: \left\{ first line (1a) second line (1b) third line (1c) \right. all lines should be aligned to left
4
votes
4answers
509 views

Annoying long equations in LaTeX

I am giving up on this long and annoying equation. I tried in so many different ways to try to fit into my page, but no success so far...Any suggestions, please? How to break down this long equation ...
4
votes
2answers
82 views

How can I group all these equations in just one group and write them without the error Missing $ inserted. …gy}

here is the equation I would like to write but it is not working as it should Here is what I have tried so far \begin{equation} \label{eq:3.2} & \[(EQE)= \frac{photons_{out}}{electrons_{...
4
votes
3answers
568 views

Numbering equation in the form (4a-d)

how I can number my equations in this form: Equation1; Equation2; Equation3; Equation4 (4a-d) while all of them are located in the same line \begin{subequations}\label{eq:35} \begin{align} u(...
4
votes
2answers
375 views

Small indentation after labelled subequations

I am trying to reference a set of equations that are placed within a alignat and subequations environments. I would like to reference them as Eq. 1 together, rather than Eqs. 1a and 1b separately. The ...
4
votes
2answers
341 views

New numbering system

I'm coming to you because I'd like to know how to create a new command that would work exactly like \Alph or \roman. I would like to create a numbering system: semel, bis, ter, quater, . . . that I ...
4
votes
2answers
689 views

Is subequations known to introduce vertical white space? [duplicate]

In this MWE, there is additional white space between the line of text and the following subequations environment. It disappears when I unload hyperref, when I remove the wrapping subequations ...
4
votes
1answer
2k views

Left and centre alignment when using subequation and align environments

I have {amsmath},{amssymb} packages. The code : \begin{subequations} \begin{align} u_0(x) = \frac{x} {y (x-b)^2 + z} , \qquad \qquad \qquad \qquad \\ u_1(x) = \frac{-2 (m + n + k)}{y (x-b)^2 + z} +...
4
votes
2answers
291 views

underbrace in each subequations in align environment

I have \usepackage{romannum} \usepackage{amsmath} \usepackage{mathtools} How is it possible to write using \begin{subequations} \begin{align} ... \end{align} \end{subequations} The code is ...
4
votes
1answer
1k views

Why is there a larger vertical space after the first subequation?

I am using the subequations environment and observe non-uniform vertical spacing between subequations. Specifically, the space between the first and second equation is larger than the other spaces. ...

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