{amsmath} is a package provided by AMS that enhances LaTeX's mathematical typesetting capabilities in various ways.

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Can one make 3-column alignments with amsmath? [duplicate]

Possible Duplicate: Align two inequalities I'd like to make an {align} with three columns, with an [rcl] type alignment, to typeset something like a < b < c a < bb < c a ...
3
votes
1answer
4k views

Two matrices side by side

I'm trying to typeset two matrices side by side, somewhat like: A = (matrix) B = (matrix) I tried to next the matrices inside an align environment: \begin{align*} A &= \begin{pmatrix} ... ...
6
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1answer
692 views

How to write centered multi-line conclusion in inference rule?

I'm using the semantic package to write inference rules and I have trouble with the following: \usepackage[inference]{semantic} \usepackage{amsmath} \begin{equation} \inference{ expr }{ ...
9
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2answers
573 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 ...
8
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1answer
2k views

Trick LaTeX into doing double superscripts

I have a function in my .sty sheet that does a second partial derivative: \newcommand{\hpartdsq}[2]{\dfrac{\partial^2 #1}{\partial #2 ^2}} But I'd like to pass it something that already has a ...
20
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2answers
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Multiset notation in LaTeX

Does anyone know how to make (nice looking) double bracket multiset notation in LaTeX. i.e something like (\binom{n}{k}) where there are two outer brackets instead of 1 as in binomial? You can see an ...
9
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1answer
202 views

Ensuring that vertical space is consistent in list of polynomials

\documentclass{article} \usepackage[fleqn]{amsmath} \usepackage{mathrsfs} \usepackage{amsfonts} \pagestyle{empty} \setlength\mathindent{0pt} \begin{document} \[3x^3\] \[3x^2\] \[3x\] \[3\] ...
21
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2answers
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Is there a difference between the `displaymath` and `equation*` environments?

The amsmath documentation says Basic LaTeX doesn’t provide an equation* environment, but rather a functionally equivalent environment named displaymath. Are they really the same or is there a ...
13
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1answer
4k views

How can I write multi line equations with alignment in inline math mode?

Is there any way to override the fact that certain environments in LaTeX are automatically "displayed"? One such example is the align* environment. I want to keep my aligned equations inline. So ...
15
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2answers
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Split-like environment inside cases environment

I'd like to have a cases environment with some cases that are too long to fit on one line. I tried this: \begin{cases} \begin{split} long expression \\ second line of long expression ...
18
votes
1answer
24k views

Text over/under implies arrow?

I'm currently trying to write over/under an implies arrow in LaTeX (in math mode): \implies_{text} This places the text lower, but next to the arrow, not below it. How can I get it below the ...
12
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2answers
578 views

Inconsistent behavior of boxes in amsmath's `gather`.

Recently I was working on a package (ytableau) and had a strange experience with the gather environment in amsmath. Namely, it screws with \vtop and, seemingly, with boxes that I reserve before ...
15
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2answers
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Extendible equals sign

I have a command that has been floating around in my standard preamble for a while: \newcommand{\xeq}[1]{\stackrel{\;#1}{\cleaders\hbox{=\!}\hfill}\:} It is meant to mimic the AMS-LaTeX extendible ...
11
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1answer
4k views

Does amsmath provide any medium to auto-break equations?

I'm writing large equations in texlive with amsmath, and I want them to be automatically broken at the end of the line. Is there any way to do that with amsmath? What would you recommend me to do ...
38
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6answers
40k views

Mathematical symbol for disjoint set union

In our lecture script, we use the notion of disjoint set union. It uses a special symbol to differentiate the disjoint from the usual set union, where we add an extra dot inside of the \cup symbol. Is ...
13
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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 ...
33
votes
2answers
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How to use more than 10 tab stops in \bmatrix?

I'm using bmatrix environment from the amsmath package, and I'm trying to do something like this: \documentclass{article} \usepackage{amsmath} \begin{document} \begin{equation} ...
2
votes
1answer
996 views

Getting AUCTeX and amsmath to work with multiple files

I'm using Emacs 23.1.1, with AUCTeX plugged in, to edit my .tex files, but I'm having a small problem with my amsmath environments. The current document I'm editing is divided into multiple files. ...
11
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2answers
212 views

How do I make “gather” object, place its self in the text, the same way as an equation object?

Assuming the amsmath package is installed. I found a difference between the way that an equation object and a gather object is embedded within the text. If an equation is beneath a line of text that ...
1
vote
1answer
3k views

Enhanced \oint to emphasize circulation

I'm looking for a symbol that merges \iint and \oint together (a dedicated package, if it could exist, would provide something like \oiint and \oiiint). The purpose of \oint is to show that the ...
3
votes
3answers
503 views

Preceding a command by an argument

\usepackage{amsmath,amssymb,amsopn}% read amsldoc.pdf for more details %\genfrac{left-delim}{right-delim}{thickness}{mathstyle}{numerator}{denominator} %\newcommand{\frac}[2]{\genfrac{}{}{}{}{#1}{#2}} ...
12
votes
1answer
19k views

Aligning the right parts in multiple \begin{cases}

Is there an intelligent way to left-align the parts right of & of the two cases environments shown below (if x >= 0, otherwise, if y < 0, otherwise). I wonder if there is a better way than ...
11
votes
1answer
10k 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 ...
15
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3answers
10k views

How to increase the spacing between equations in “gather”?

Is there a way to consistently increase the vertical spacing between equation lines in a gather (or gather*) environment from amsmath? Specifically, I want to produce something like \begin{gather*} ...
8
votes
1answer
801 views

Amsmath has problems with $e^{\sum{x}}$

Running the code: \documentclass{article} \usepackage{amsmath} \begin{document} Test: $e^{\sum{x}}$ \end{document} Dies, yet it runs just fine with the \usepackage{amsmath} commented out. The logs ...
28
votes
1answer
6k views

Problem with qedhere

In a paper I'm writing, I end a proof with a displayed equation that has some cases in it. The relevant code looks something like the following: \[f(x) = \begin{cases} 2x & \text{if $x<0$}\ ...
17
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4answers
7k views

Intertext vertical spacing

How do I reduce the vertical spacing of \intertext?
15
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3answers
9k views

Aligning across 'aligned' equation blocks

I'd like to format two groups of equations such that all their equal signs line up and such that I can put a big brace to the right of each block to annotate that block. The last part is easily ...
3
votes
2answers
5k views

alignat problem

Whenever I try to use the alignat environment, it doesn't seem to work on my computer! I tried the following simple code (my file had \usepackage{amsmath}): \begin{alignat}{3} \min \quad x_1 ...
13
votes
2answers
5k views

Increase spacing in split environment

I'm writing long equations with the split environment: \begin{equation} \begin{split} ... \\ ... \\ ... \end{split} \end{equation} The problem is that the single lines are a bit high, and there is ...
42
votes
3answers
4k views

Which command should I use for displayed equations?

A number of related questions have already been asked about this issue: align vs equation which is preferable to what to do with this hyperref note on amsmath and even eqnarray vs align But I'm ...
18
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4answers
1k views

What to do with this hyperref note on amsmath?

http://www.ctan.org/tex-archive/macros/latex/contrib/hyperref/ has this note copied below: amsmath ------------- The environments equation and eqnarray are not supported too well. For ...
24
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3answers
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How do magic \dots work in amsmath?

The amsmath package redefines the \dots command so that it "guesses" the correct height of the dots with respect to its context. For example $x, \dots, y$ will produce three lowered dots, aligned ...
52
votes
4answers
11k views

align vs equation

I always use align in my documents, and avoid equation. Is there anything wrong with that? My reasoning behind this: align > equation, so why not use it?
11
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3answers
5k views

Defining a command for amsmath's align environment

I'd like to define a shorthand command for \begin{align*} and \end{align*}. When I write \newcommand{\ba}{\begin{align*}} it works fine. But when I write \newcommand{\ea}{\end{align*}} ...