{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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6
votes
1answer
6k views

How do I left and right justify text within an align environment

I want to simultaneously have text left and right justified around an align environment. I'm able to do this, but my solution seems like a dreadful hack. I really don't want to prepend every line ...
7
votes
2answers
2k views

Why does aligning equations not work here?

\documentclass{minimal} \usepackage{amsmath} \newcommand*{\op}[1]{\operatorname{#1}} \begin{document} \begin{align*} \noalign{$\quad \op{f} * \op{r} = \op{c}_{\op{f}*\op{r}} (x_1,...,x_k) = ...
2
votes
1answer
242 views

Latex matrix not displaying right numbers

I've just started writing in latex to expose math problems to a forum. I am trying to display a matrix: \[ \begin{align*} \begin{matrix} 1 & -9 & 3 \\ 1 & 2 & -2 \\ -2 & ...
0
votes
1answer
208 views

exam class and align* environment [closed]

I wonder if there is a conflict between the align environment and the exam class. I have the following and it gives an error for \begin{align*} \documentclass[answers,11pt]{exam} ...
13
votes
2answers
2k views

Footnote in align environment

It appears that one is not supposed to use \footnote in math mode as per this appropriately named question: Footnote in math mode. However, it appears that I can get it to work without having to ...
3
votes
2answers
319 views

Multilines aligned to describe a set notation

I'm trying to write a set notation in multiple lines, for example: This is my code to get it. \usepackage{amsmath} \begin{document} ... \begin{align*} Lookup &= \{\, \langle C, A.m, B.m ...
5
votes
1answer
1k views

How to align bibliography to the left

I am using a custom bibliography style I created with makebst. For some reason, the references are not aligned to the left, only the first line is aligned to the left and the rest seems to be ...
15
votes
1answer
655 views

Correct usage of \ifmmode

Seems that there is some subtlety in using \ifmmode that I am not aware of. For some reason, using: \newcommand{\hlcodeA}[1]{\ifmmode\else\small\fi\texttt{\hilight{#1}}}% is not quite identical ...
8
votes
1answer
2k views

Altering fontsize in equations globally

I am trying to typeset all formulas in an article using \small font. If I use \DeclareMathSizes{9}{8}{6}{4}, then the size of in-line math in regular text is also changed. However, I want to redefine ...
7
votes
3answers
2k views

alignat makes 3 good alignments and 1 bad

I'm having a problem with the alignat environment. This code: \begin{alignat*}{9} &X_{12}&+X_{13}& & & & & & & &=1 ...
5
votes
1answer
80 views

align environment according to *first* character, rather than last

\begin{align*} abcd &= abcd &(abcdefghijk)\\ &= ab &(ab) \end{align*} After the first ampersand the equal signs are aligned. However, after the second ampersand, the ...
2
votes
2answers
1k views

Unwanted space before flalign

Why is there so much vertical space between the subsection heading and the equation in the following example. How do I get rid of it? \documentclass{article} \usepackage{mathtools} \begin{document} ...
2
votes
1answer
468 views

Interrupt environment with command

At the moment I'm trying to figure out how I could interrupt an environment. What I did so far... \documentclass{article} \usepackage{amsmath} \newenvironment{envnew} { \begingroup \csname ...
2
votes
2answers
747 views

\noalign without line break / additional spacing

I need a non-breaking version/redefinition of \noalign to use it at the end of an environment (in this case align). So far I searched for the standard definition of \noalign to write a redefinition ...
2
votes
1answer
286 views

conflict with pst-tree and align: auto-pst-pdf problems?

There appears to be a problem when using the pst-tree package together with the align environment and pdflatex (dvi-ps-pdf works, but there are reasons for me not to use it). Attached is a code ...
13
votes
1answer
366 views

What's the right space to right the alignment of a right aligned align environment?

As Hilbert would have put it, had he lived in the TeX-era: No one shall expel us from the Paradise that AMS has created. and one aspect of that paradise is release from the tyranny of eqnarray ...
3
votes
1answer
2k views

Right flush text in math environment

In my align* environment I have a bunch of lined up equations, but I would like to put some explanations of the steps done to the right of the equations. Currently it looks bad: \begin{align*} ...
13
votes
2answers
4k 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 ...
1
vote
0answers
454 views

Paragraph indent in \intertext of align [closed]

I have the following LaTeX code: \subsection{andere Ladungsdichte} Gegeben ist die Ladungsdichte: \[ \rho\del{\vec r} = - p \delta(x) \delta(y) \delta'(z) \] Durch Integration erhalte ich das ...
4
votes
2answers
1k views

proof format 2 columns [duplicate]

Possible Duplicate: How to correctly format (and align) a LaTeX proof? In my proofs I would like to have justifications of each step to the side of the numerical manipulation. For instance ...
3
votes
1answer
3k views

Error: Extra }, or forgotten \right in align environment

I'm getting errors in the align environment that I'm not getting for the exact same line that compiles without error in the equation one and I can't figure it out. Can someone shed some light on this? ...
8
votes
2answers
3k views

Underlining an equation in an align block

I'm trying to set up a system of equations and want to underline the last equation, but can't figure it out. Here's what I have: \begin{alignat*}{4} &F_n &- mg &- F_a\sin 32^\circ &= ...
15
votes
2answers
4k views

Align Equations Over Multiple Tabular Rows

I'm trying to set up a table with some equations in it, however I would like the equations on multiple rows to be aligned properly. So far I have \begin{tabular}{cc} \hline \multicolumn{1}{l}{Header ...
4
votes
3answers
695 views

Alignment in multiple locations of a single equation based on first line

I want to align a multi-line equation so that it basically looks like this: a = (b + c + d + e) f = g The requirements of this alignment are: The equal signs should be aligned. The beginning ...
7
votes
2answers
775 views

right align in align environment

I use a align* environment and on one line I have a very long equation which does not contain into a line. Thus for this line I would like to have the same behavior as a multline environment, that is ...
1
vote
1answer
484 views

Aligning in the aligned equations in widetext

I have expressions that I'd like to have aligned so that the first letters are aligned, but that the whole thing is still in center. I have this: ...
8
votes
1answer
2k views

alignment problem

I have the following: \documentclass{article} \usepackage{nicefrac} \usepackage{amsmath,amssymb} \begin{document} \begin{align*} f_X(x)&=\frac{1}{2 \pi} \exp ( -x^2/2 ) &\forall x \in ...
3
votes
0answers
73 views

Aligning \text{} on the left [duplicate]

Possible Duplicate: How can I break an align environment for a paragraph? I am new here, and quite new to LaTeX. I did search for an answer to this as I think it should be trivial, but I ...
1
vote
2answers
238 views

Preserve spacing while using align with amsmath

While \documentclass{article} \usepackage{amsmath} \begin{document} \begin{align} & A \\ & = B \end{align} \end{document} preserves the horizontal space after the equals sign, ...
11
votes
3answers
4k views

Alternative to IEEEeqnarray

By recommendation from The Not So Short Introduction to LaTeX, I have been using the IEEEeqnarray environment a lot, since it solved many of the rather annoying problems related to the ...
6
votes
3answers
223 views

Specify alignment per column in align equation

Using the following mwe i have not yet found a way to align the formulas correctly. \documentclass{article} \usepackage{mathtools} % extends amsmath and fixes some of its quirks ...
6
votes
1answer
1k views

Left-aligning equations

How do I left-align selective equation blocks, i.e. not centered ? I know how to do it for ALL equation blocks in the document setting \usepackage[fleqn]{amsmath} \setlength{\mathindent}{0pt} in ...
4
votes
1answer
827 views

aligning equals as well as plus signs

From this question we know that aligning the equal signs in A = B = C D = E = F is done by using alignat, not align. If we have instead A = W + M = C B = i + \iota = D how can the equal signs ...
4
votes
1answer
2k views

Aligning equations with align*

I wanted to align a set of equations to left. I found on the Internet that you can do it easily with align* environment. I found it here: http://en.wikibooks.org/wiki/LaTeX/Advanced_Mathematics So ...
28
votes
4answers
60k views

Aligned equations in LaTeX

I have a long equation in LaTeX, which I need to break up into more lines. I've done this, although its not quite what I was looking for. Here is a MWE showing my problem: ...
6
votes
1answer
636 views

How to align a set of my equations?

I just wan't to align the equation like this example (Of course, I can't align these equations on the web page): ∵△ABC ≌ △A′B′C′ ∴∠ABC = ∠A′B′C′ ∠ACB = ∠A′C′B′ ∠BAC = ∠B′A′C′ If I use &, ...
4
votes
1answer
412 views

Align multiple equations under longer equation

I want to do what this MWE would do if the hspace{-1in} actually moved that second alignment column to the left, underneath the big quadratic formula. \documentclass{article} \usepackage{amsmath} ...
9
votes
3answers
6k views

\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} ...
2
votes
1answer
619 views

Left aligned multi line equations and \newenvironment

I'm building a table of integrals, for my own use. I need simple things: equations must be left aligned, sometimes I need alignment on the equal symbol and to save space sometimes I need 2 equations ...
2
votes
2answers
848 views

array environment with tags/labels

I try to come up with a couple of formulas which should be aligned according to a relation symbol but also to the left. Have a look at the following example: \documentclass{article} ...
7
votes
2answers
3k views

Highlight an equation within an align environment with color option

I'd really like to do exactly what's being asked for in this question: Highlight an equation within an align environment, but with the ability to change the color when I call it, so that I could have ...
6
votes
3answers
248 views

What's the best way to align binary operators to the right of a relation symbol?

I know that you're generally told to align binary operators to the right of a relation symbol like this (using {align*}): \begin{align*} x={}&a+b+c\\ &+d+e+f \end{align*} But would it ...
0
votes
0answers
211 views

get rid of the number of nonreferred equations [duplicate]

Possible Duplicate: How to organize labels when there are too many equations? How do I number equations only if they are referred to in the text? I have a lot of equations in my documents ...
0
votes
1answer
474 views

problem with \left| and align [duplicate]

Possible Duplicate: How to make \left, \right pairs of delimiter work over multiple lines? Hi I'm trying to write a long equation with {align*}: \begin{align*} ...
2
votes
1answer
552 views

elsarticle figure to left in LyX

I use elsarticle 2 docment page in LyX. I put figure in left column partion and use \resizebox{3.4in}{!}{ Figure.png } to make it smaller But I still need to align the figure to left of the page ...
4
votes
3answers
2k views

how to justify left all numbered equations

I use displayed numberd formula in lyx the equations are appears in middel I want to justify left the equations I used elsarticl 2 column page format
4
votes
1answer
199 views

how to align the following set of equations and have one equation number?

I have two equations. One is big and the other is small. I want to align them and want these two equations to have only one equation number. Another question is : Are there ways to make these ...
5
votes
1answer
657 views

aboxed across multiple alignment

I would like to have the entire last line in a box, but when I compile, it only boxes the first equation and doesn't even print the second equation. Does anyone know how to fix this? Here's my MWE. ...
8
votes
1answer
8k views

Tabbing for math mode?

I'm looking for something synonymous to tabbing, but for math mode. I read that alignat* should do the trick, but this behaves differently it seems. For example: \documentclass{article} ...
1
vote
1answer
1k views

Positioning of \flalign and arrows between the equation

I want to have something as following, but I'm not satisfied with the result: \documentclass[12pt,parskip]{scrartcl} \usepackage{amsmath} \usepackage{amssymb} \usepackage{geometry} ...