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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1answer
51 views

Combine two equations with linebreaks into subequations

I have two separate equations with line breaks. However, I would like them to be subequations and, thus, numbered as (1a) and (1b). I have tried all sorts of things (e.g. working with \begin{...
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2answers
89 views

Nested align with full subnumbering of all rows

I want to have an equation containing nested align environments, where each row is numbered like a subequation like 1a), 1b), 1c) etc. I have the following code that does already almost what I want: ...
0
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1answer
272 views

How do you align multiple empheq boundary conditions?

I am looking to align my curly brackets on the slide but cannot figure out how to do this. I have tried grouping an align statement around each as such: \begin{align} \begin{subequations} &\...
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2answers
199 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 ...
3
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2answers
171 views

Equation Number Overwriting

\documentclass[12pt, letterpaper]{Ultheses} \addtolength{\footskip}{0.25in} \usepackage{amsmath} \usepackage{array} \usepackage{tabu} \usepackage{graphicx} \graphicspath{ {/} } \usepackage{matlab-...
2
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1answer
220 views

Why does not subequations numbering work as intended when I customize it?

I am using IEEEtran for typesetting and it seems that subequations are cited appropriately when leaving their numbering to the default value. When I customize it, however, the equation numbering ...
2
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1answer
105 views

A `\crefmultilabelformat`command allowing `\crefstripprefix` constructs for `\cref`

My question is a more general (and hopefully clearer) formulation of this one. With package cleveref, when referencing simultaneously several labeled objects, one can either use the multiformat ...
0
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1answer
41 views

Separate “subequations” environment but same horizontal alignment

\begin{subequations} \begin{align} a_1 x + b_1 &\geq 0 \\ a_2 x + b_2 &\geq 0 \\ a_3 x + b_3 &\geq 0 \end{align} \end{subequations} \begin{align} \therefore x \leq 0 \end{align} This code ...
2
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1answer
76 views

Nesting subequations within align plus the usage of cleveref

I am using the solution for nested subequations with alignment (“The subequations environment & the parentequation counter”). I would like to use cleveref package references with groups of ...
2
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3answers
137 views

How to change the sub-tags of Equations and the cross-references accordingly?

I am trying to modify the following labels for the letters to be capital letters. I also need the cross-references (using cleverref) to match the newly defined style. There are several related ...
3
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1answer
284 views

Mixed subequations in align with ability to refer to parent equation

I've been using the answers developed in this question in order to have mixed equations and sub-equation numbering inside of an align environment, MWE: \documentclass[12pt]{article} \usepackage{...
2
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1answer
671 views

braced equation with multiple lines on right side, with equation numbers

I thought I'd come across a solution for my question but surprisingly (to me) I did not. I hoped an example would have been in https://en.wikibooks.org/wiki/LaTeX/Advanced_Mathematics but maybe it ...
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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
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1answer
653 views

How to reuse an equation number and continue numbering from previous subequation environment

Herein in my given code, I am having four equations which are getting numbered as, 1a, 1b, 2a and 2b respectively. I want them to get numbered as 1a, 1b, 1b and 1c (because if you check then eq.1b and ...
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0answers
183 views

How to remove vertical space when subequations are used along with empheq?

I am using empheq along with subequations as given in the MWE. However, the use of subequations create a vertical space between the paragraph and equation as shown in figure, which I don't want. I ...
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2answers
317 views

Subequation: Counter too large and alphalph does not work [duplicate]

I have an urgent question. I am writing a document and I have equations (but they are more than 26). I get the error 'counter too large'. I saw in other topics that I need to use alphalph package but ...
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1answer
2k views

How to center subequations and maintain sub-numbering

I'm trying to get a subequation with 3 lines to have all equations centered horizontally relative to each other. Right now I have: \begin{subequations}\label{eq:propArea} \begin{alignat}{2} ...
0
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1answer
898 views

Labels in subequations

I have the following system of equations \begin{subequations}\label{eq} \begin{align} &\alpha_x = \dots\label{eqa}\\ &\beta_x = \dots\label{eqb}\\ &\gamma_x = \dots\...
2
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2answers
440 views

Subsections separated in different sections with same main numbering

The problem is I want to place a set of equations in different section in the article, and label them with same main number in \subequations environments. As I found in relevant questions, I can put ...
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3answers
763 views

flush text on the left and centre equation of the same line (not working!)

I want to have the "Mass" and "Momentum" text part aligned to the left side of the page (where you see 'steady' and 'version' from the previous paragraph), while keeping the equations on the same line ...
2
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1answer
357 views

One reference to equations and subequations

Within my document I need to refer to two equations and to the overall label of subequations. I have the packages hyperref and cleverref included in the structure of the document. However latex gives ...
3
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2answers
761 views

Linebreak in subequations environment

I use align within subequations and this works fine for normal length equations. However I would like to break this long equation into two or three parts. Currently I use \\ to break the long ...
3
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1answer
570 views

Force the numbering of a specific equation when mathtools showonlyrefs is true

In order to avoid wasting time in adding/removing *s to number or not equations, I use \mathtools{showonlyrefs=true} in the preamble. Nevertheless, sometimes I'd like to number unreferenced equations. ...
3
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3answers
1k views

How to typeset aligned equations with a curly brace to the left and subnumbering

I want to typeset multiple equations that are aligned by the '=' sign are combined by a curly brace to the left have 'subnumbering'. They should look like { a = b (1.1)a { c = d (1.1)b { e = f ...
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0answers
56 views

Subequation is adding a random 9 to the end of my equation [closed]

Here is the full equation block: \documentclass[12pt, English]{article} \usepackage{amsfonts,amsmath,amssymb} \usepackage{epsf, subfigure, verbatim, epsfig} \usepackage{lineno, color} ...
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2answers
167 views

How to add text before the subequations?

I am translating a book into Chinese, and it doesn't provide the latex file of the book. How to add text before the subequations? This is my code for it \parbox{8.5em}{ predictor: \\ Kalman ...
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2answers
331 views

Aligning consecutive align environments and keep equation numbering

I have the following latex code: \documentclass[12pt,letterpaper]{article} \usepackage{amsmath} \usepackage{amssymb} \begin{document} \begin{subequations} \begin{align} \Phi_1^l(r)&=-(2l+1)\frac{...
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1answer
2k views

How may I insert white vertical space between subequations?

I have the following MWE \documentclass[11pt]{article} \usepackage{empheq} \newcommand*\widefbox[1]{\fbox{\hspace{2em}#1\hspace{2em}}} \begin{document} \begin{subequations} \begin{empheq}[box=\...
6
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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. ...
19
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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 ...
6
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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
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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}...
9
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1answer
834 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 ...
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2answers
1k views

Error using subequations

I am using subequations. There is no way to get a right output... I am using \documentclass{book} \usepackage{amsmath} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsthm} \begin{document} ...
5
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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: \...
4
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1answer
2k views

Tufte LaTeX not recognizing subequations and \usepackage[table]{xcolor}

I have a LaTeX document that I want to put in tufte format. However, when I compile it is not reconizing the \begin{subequations} (I used \usepackage and not accepting the \usepackage[table]{xcolor} ...
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0answers
62 views

How can I use a curly brace together with subequations? [duplicate]

The code \begin{equation} \begin{cases} x+y=2 \\ x-y=0 \end{cases} \end{equation} produces two aligned equations, with a curly brace to the left. I want to refer to the individual equations, and the ...
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0answers
305 views

hyperref, babel and subequations conflict [closed]

I am trying to use subequations in a document. Playing around with my preamble I found out that if I use babel and hyperref package at the same time, a fatal error is occured and no .pdf is produced. ...
7
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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 ...
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}}} \...
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2answers
123 views

Equation refuses to move leftward, past the first line

I suspect people have already asked this question, but: I have a really long multiline equation, inside an align environment, which is inside a subequation environment. Each line of the equation is ...
3
votes
2answers
1k views

Number equations within array

I want to number sub-items of an array I have in order to refer to the right equation and not to the set of equations (SEE the pictures attached): Figure that should call 1.35a, 1.35b, 135.c, 1.36a, ...
2
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1answer
220 views

How can I customize equations numbering in subequations enviroment?

In the figure above, the subequations part of numbering is alphabetical, but I want to customize both the equation and the subequation part to look like this: a-I, a-II, and a-III. Here is the source ...
3
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1answer
261 views

How to number automaticaly a family of equations (and ref to them)

The question will be self answered and it is simple. Sometimes, we need to create a family of equations with the same number but with something different (an extra counter or something) For example I ...
1
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2answers
332 views

How can I enumerate an expression within $$ … $$?

Can someone help me, I want to enumerate my mathematical expressions that I wrote inside $$ ... $$. $$y=f( \sum_{i=1}^{N} w_ix_i+w_0)$$ I used \align but it doesn't work, I even used \begin{equation}...
2
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0answers
44 views

flushing lines in gather environment [duplicate]

Possible Duplicate: How can I add left aligned text to an equation? I need to write a system with sub-items looking like this: \begin{subequations} \begin{gather} \text{ {\textit{First Block ...
3
votes
1answer
467 views

Using subequations without amsmath

Following on from my previous question regarding the use of align and aligned without 'amsmath', I am currently working on a proceedings paper, and have realised after finishing it that only specific ...
3
votes
1answer
611 views

Equation numbers under equations

I have three similar equations which I want on a same line. I put them in tabular environment nested within subequations following this: subequation in tabular. Now I have this code: \documentclass{...
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 < \...
3
votes
3answers
991 views

subequation numbering in itemized list

This is what I generated for a set of equivalent definitions of positive semi-definiteness. \documentclass[10pt]{article} % for fancy math \usepackage{amsmath} % rank operator \DeclareMathOperator*{...