{align} is an environment provided by math packages that permits multiple related equations to be aligned at a common reference point, usually a sign of relation. For general questions about aligning document elements, use {horizontal-alignment} or {vertical-alignment} instead.

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side-by-side equations, with equation numbers for each

The align command from amsmath allows me to put two equations side-by-side: \begin{align} x = y && a = b \end{align} Unfortunately for my purposes, this shows both equations under one ...
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4answers
3k views

Left-aligning specific text in math-mode

I currently have via \documentclass{scrartcl} \KOMAoptions{ fontsize = 10pt , headings = normal , } \usepackage{amsmath} \usepackage{multicol} \usepackage{siunitx} \begin{document} ...
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2answers
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Enumerate formulas

I'm writing a math paper in LaTeX and for math formulas I'm just using $$math formula$$. Is is possible to numerate formulas? Or do I have to you use some specific commands such as align?
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Horizontal spacing after equation

I have the following snipped in my LaTeX document: \begin{align} \sum_{j=1}^{m}x_{ij} &= 1 \text{ for } i = 1,2,...,n \sum_{i \in P_k}x_{ij} &\leq 1 \text{ for } j = 1,2,...,m \text{; } ...
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Compact collapsing of equations and paragraphs

I want to duplicate the compact look of G. K. Batchelor's fluid dynamics book. Where a paragraph terminates such that the mathematical expression can collapse up into the vertical space of the ...
9
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3answers
539 views

Numbering a set of horizontally distributed equations

Having different horizontally distributed equations inside an align environment, only lines are numbered, but not individual equations. How can the left equations be numbered using subequations? ...
9
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2answers
5k views

Putting equations in \intertext to annotate a proof

I'm trying to typeset a proof with Latex. When I do proofs, I like to alternate between a line of text, to explain each step, and the resulting equation. I also like to have the equations align at the ...
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4answers
363 views

How do I avoid eqnarray?

We have been told to avoid eqnarray and use align instead. The output of eqnarray here: \newcommand{\Prob}{\operatorname{\mathbb{P}}} \newcommand{\tp}{\operatorname{tp}} ...
9
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3answers
138 views

what is the correct way to typeset equations with a leading indicator/marker on each

I am using \begin{align*} to typeset set of equations. I want to say that the first one applies to case of dimension [T] (time), and the second for [L] (length) and the third for [M] (mass). I want ...
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3answers
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\left and \right in equation across multiple lines [duplicate]

Possible Duplicate: Left/Right across multiline equation Could someone explain why I can't get the left and right commands to work correctly code: \documentclass{article} ...
9
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2answers
191 views

How to add equations on top of arrows?

I have the following matrix: $$ \left[ \begin{array}{ccc|c} -4&2&-2&10 \\ 1&0&1&-3 \\ 3&-1&1&-8 \end{array} \right] \sim $$ I want to have something like this: ...
9
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2answers
284 views

how can I align limits at “lim”?

I am trying to align several limit expressions at varying x-values. It seems that align treats the "limit" portion together with its subscript as an entire object, then aligns these limits, which ...
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1answer
948 views

Aligning sub-equations within align

Update: How do I align both the \sum signs and the = signs in the last two equations? I have updated the picture. Original Question: When I use the following code: \begin{equation} \begin{split} ...
9
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3answers
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Using \gather and \align together

I'm very picky regarding alignment inside my proofs. What's frustrating me right now is that I have some lines that I want to be center-aligned (using \begin{gather}) and others that I wish to align ...
9
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1answer
7k views

Multiple labels in aligned environment

I would like to format an optimization problem by \documentclass{article} \usepackage{amsmath} \begin{document} We want to label each line separately. The inserted text and formulas have to be ...
9
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1answer
379 views

How to split and align equations when they are inside an enumerate environment?

How to make the first line of aligned equations sit in the same baseline as the bullet and make the equation left justified? \documentclass{article} \usepackage{amsmath} \begin{document} ...
9
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1answer
406 views

In align environment, put word at left margin and still align equations with &?

In an align environment, how can I put a word such as "Now" or "And" at the left margin and still align equations on that line and subsequent lines with &?
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2answers
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Mix align and enumerate

Is it possible to mix align* and enumerate, for example I want to TeX something like this (item a) and d), b) and e) and c) and f) should be aligned) a) x^2 + y^2 = 1 b) a + b = c c) r-x = y+z d) f ...
9
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1answer
7k views

Error in align environment - runaway argument? [duplicate]

Possible Duplicate: Blank lines in align environment \documentclass[12pt,a4paper]{article} \usepackage[version=3]{mhchem} \usepackage{siunitx} \begin{document} \begin{align*} \ce{K_a} ...
9
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1answer
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\overbrace split accross multiple lines

Is there a way to split the overbrace so that it appears in two halves over a multi-line equation. Something like /-----------Overbrace Label---- Equation over which to place ...
9
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2answers
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How to position text on top of a node?

How to position text on top of a node? \documentclass{report} \usepackage{tikz} \usetikzlibrary{positioning} \begin{document} \tikzset{every node/.style={rounded corners,minimum height=5cm}} ...
9
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1answer
159 views

How can I align the terms of this equation nicely?

I have the following alignat segment: \begin{alignat*}{3} \text{max}_{\underline{\lambda}} \text{min}_{\underline{x}} \quad & \underline{c}^T \underline{x} + \underline{\lambda}^T(\underline{d} ...
9
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2answers
414 views

Selective numbering of equations with align

I have an align environment with 5 equations. I want 3 of them numbered, and the other 2 not numbered. I understand that there's other posts on the issue of selective numbering of those equations that ...
9
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3answers
267 views

Remember position of equal sign from one align environment to the next

As you know, the align-environment puts all positions marked with & (normally the equals sign) exactly beneath each other. I now want to save the position LaTeX calculates for & and use it ...
9
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1answer
7k views

Vertical space before and after align environment

I am wondering if it is possible in LaTeX to generally adjust the spacing before and after math in the align environment from amsmath. From the Mathmode-guide (by Herbert Voss) I gather that ...
9
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2answers
556 views

amsmath align within list

In the code below, the equation within the itemize environment is too wide for the page, but I don't get an overfull hbox warning (which I find annoying because it's sometimes useful to know exactly ...
9
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1answer
162 views

Measuring align

From what I read it seems that align environments are processed twice: the first time for measuring, the second time for actual typesetting. My question is whether one can get access to these ...
8
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4answers
253 views

How to align five equations on three lines, e.g., 2-2-1, with the last equation centered?

I'm trying to use the alignat environment to arrange five equations on three lines as follows: two equations on the first line, two equations on the second line (aligned with those of the first ...
8
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4answers
1k views

How to align 'implies that' symbols neatly in equation array

The following is an equation array I have: \begin{eqnarray} \Rightarrow\eta_t &=& \eta_x(\omega \eta-(\varphi_x)_s) + (\varphi_y)_s\notag\\ \Rightarrow\eta_t\,(\varphi_y)_s &=& ...
8
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3answers
147 views

Aligning elements in set

How can I create a set with aligned elements? Example: I tried using align but it does not align as nicely as in the example. \begin{align*} &P = \set{ &A &\rightarrow &a | ...
8
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4answers
308 views

Alignment of table entries: the case of negative numbers

Assume that we have a table that has positive and negative entries. My question is simple: how can we have the number alignment to start from the actual number and not the negative (-) symbol? Let ...
8
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4answers
292 views

How can I align at relation symbols within a cases environment?

I have used the following code in LaTeX - \documentclass{article} \usepackage{amssymb,amsmath} \begin{document} \begin{table}[H] \centering \begin{tabular}{c|c} \hline { $X=y+z$} & { ...
8
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2answers
367 views

Align the length of two nodes inside a matrix

I wanted to create a node with vertical and horizontal parts. So after some searching I found that I can achieve this by using a matrix. I tried the code below: \documentclass{article} ...
8
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2answers
423 views

Equation number with an apostrophe

I am writing two equations in an align environment: \begin{align} x^2+y^2=z^2, \\ x^2=7, \end{align} I would like the first equation to be labelled with e.g. (1.1) and the second equation to be ...
8
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3answers
13k 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*} See http://i.stack.imgur.com/TFIfY.png for an ...
8
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3answers
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How to align piecewise functions?

I have two piecewise functions defined like this: \begin{align*} \left\{ \begin{array}{ll} i = x^2 + y^2 \\ j = a^2 + b^2 \\ \end{array} \right. \\ \left\{ ...
8
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2answers
143 views

DeclareMathOperator and align environment

Minimal working example: \documentclass{article} \usepackage{amsmath} \begin{document} \begin{align} &s + t &\text{foo}\\ &\sin x &\text{bar} \end{align} ...
8
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3answers
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AMS Split inside AMS Align

I'd like to have multiple lines inside a single align cell like so: \begin{alignat*}{1} = & \begin{split}x+\\ y\end{split} \end{alignat*} But I get an error like: \end{alignat*} \An extra ...
8
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3answers
377 views

Typesetting a long exact sequence

I am trying to typeset the Mayer-Vietoris sequence (concisely - without the map names above the arrows). Currently I am simply using the AMS align environment with a bunch of \rightarrow, \cdots and a ...
8
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3answers
205 views

Align matrices problem

I have an equation of matrices and I want to align the dimensions of the matrices below the equation of matrices. However, I produce something very ugly. Can someone advise how to make it look better ...
8
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2answers
112 views

How to align only some equations in an align environment?

Here's what I got: \begin{align*} P[E_{m}] &= P[m] + P[2m] + P[3m] + \dots \\ &= \frac{1}{\varsigma(s)} \langle m^{-s} + (2m)^{-s} + (3m)^{-s} + \dots \rangle \\ &= \frac{1}{\varsigma(s)} ...
8
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2answers
456 views

Aberrant vertical spacing with {align} and friends?

Consider documents with the following preamble: \documentclass[12pt]{article} \usepackage{amsmath} Question #1. Why do we get bad alignment with the following code? \noindent ...
8
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2answers
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Label one line in a begin align*

I have the following block of TeX: \begin{align*} m_n^+ = \dfrac{1}{n}\sum\limits_{k=N+1}^{n} =& \dfrac{1}{n}\sum\limits_{k=N+1}^{n}\left(a_k-L+L\right) \\ ...
8
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1answer
468 views

How to force equation to be closer to the sum operator?

I would like to know if it is possible to force the equation to be closer to the operation sum? When there are a lot of subscript under the sum operator, it tends to pouch the equation to the right, ...
8
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3answers
275 views

Multiple alignments

If I have a string of equations whose equal signs are aligned and one of the equations is too long and needs to span multiple lines, how do I create a second alignment. For instance, in the following ...
8
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2answers
254 views

Errors when trying to define a custom align environment

I'm currently trying to create a custom environment with its own counter. \documentclass[a4paper,11pt]{report} \usepackage[fleqn]{amsmath} \newcounter{grammarcounter} \newenvironment{grammar}{ ...
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2answers
217 views

Glossaries in Align Environment

Using glossaries commands in align environment seems to screw up the tag alignment. How can I use gls{...} commands in align environments without the tag position being altered? Consider the ...
8
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2answers
234 views

How to align multiple symbols for a long equation?

\documentclass[11pt]{article} \usepackage{xfrac, array, tabu, multirow, graphicx, setspace, dcolumn, tikz} \usepackage[fleqn]{mathtools} %the argument for d specifies the maximum number of decimal ...
8
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1answer
39k views

Align equation left

Here is my split equation: \documentclass{article} \usepackage{asmath} \begin{document} \begin{equation} \begin{split} a_{ijk} =& \frac {Pr(M_{I} =2 \& M_J=1 \& M_K =1 | I=i , J=j , ...
8
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1answer
149 views

Underbrace multiple math lines

I have to underbrace multiple lines in an align-environment with one brace. Meaning something like \begin{align*} A ={}& B + \underbracemultiline{C + D + E \\ & + F + G \\ & ...