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

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1answer
36 views

Missing endcsname inserted error

I have the following latex code which produces the error mentioned in the title: \documentclass{article} %\usepackage{flexisym} %\usepackage[T1]{fontenc} %\usepackage{array} \usepackage{setspace} \...
2
votes
1answer
51 views

Make a tall rectangular array square

I have a tall array that I would like to make square. Unlike the solution here, which works but makes the array wider to match up with the width, I would like to decrease the spaces between rows to ...
1
vote
1answer
74 views

Writing a nice function

How to write a function mapping like this: MWE \documentclass{standalone} \usepackage{amsmath,amssymb} \begin{document} $ \begin{matrix} f'\colon & A \to \mathbb{R} \\ & x\mapsto f(x)=x^2 \...
5
votes
6answers
153 views

Breaking equations within the align environment

I currently have these two equations, but they are too long to fit on one line: \begin{align*} [((a_0, a_1, a_2)+(b_0, b_1, b_2)) + (c_0, c_1, c_2)] &= [((a_0 + b_0, a_1 +...
2
votes
1answer
37 views

Doing case analysis on an argument of a macro

Background: As has been discussed here, there appears to be no widely accepted typographical standard for logical quantifiers. To address this I defined in my paper the following macro: \newcommand{\...
2
votes
1answer
47 views

How to manage the position of intertext within align

\begin{equation*} \begin{aligned} E(X) & = \sum_{x=0}^{\infty}x\frac{e^{ - \lambda }\lambda ^x}{x!} \\ & = \sum_{x=0}^{\infty} \frac{e^{ - \lambda }\lambda ^x }{(x-1)!} \\ & = \...
6
votes
1answer
239 views

Why “p” in pmatrix?

I am using the command \begin{pmatrix} [...] \end{pmatrix}. I wonder why this command is not just called \begin{matrix} [...] \end{matrix} and why a "p" before "matrix".
4
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3answers
40 views

getting the equation numbering right using align and a long equation that splits

So I've got a system of equations. One equation is very long. I want them all aligned, but I want the long equation to split over two lines. \begin{align} \theta &= \theta(t-1) -p \theta(t-1)...
3
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1answer
61 views

Hyperref refer chapter and page in text

\documentclass[oneside,10pt]{book} \usepackage{amsmath, amsfonts, amsthm, amssymb} \usepackage{hyperref} \usepackage{blindtext} \begin{document} \chapter{something} \blindtext[1] \chapter{...
6
votes
3answers
97 views

How to align equations in two columns?

Well, my problem is I'm trying to find a way to write many equations and divide these into columns as you would when writing on paper, cut in some part and continue. I have achieved almost using the ...
1
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1answer
120 views

Left align text in equation environment (no use of align environment)

I understand that you can left-align text using \intertext{...} inside \begin{align}...\end{align} environment, e.g. this answer. Is it possible to do the same but inside \begin{equation}...\end{...
1
vote
1answer
46 views

Missing } inserted and missing $ inserted using amsmath package

I'm using Texmaker 4.5 over Ubuntu 15.10 and trying to compile some amsmath code: \begin{eqnarray*} $\underset{\mathbf{S}}{\operatorname{arg\,min}}$ \displaystyle\sum\_{i=1}^{k} \sum\_{\mathbf x \...
1
vote
1answer
52 views

Align/Array equation - explain the options

I have searched and found a solution to a problem I had here: Horizontal alignment, but now I have a follow-up question (and can't comment there because I have little reputation): The code in the ...
3
votes
1answer
36 views

\setmainfont breaks \DeclareMathOperator

\DeclareMathOperator works fine without \setmainfont. \documentclass[a4paper]{standalone} \usepackage{amsmath} \DeclareMathOperator{\grad}{\nabla} \usepackage{unicode-math} \begin{document} $\nabla \...
2
votes
2answers
183 views

Auto-linebreaking in underset

I often find myself writing explanations to passages in (in)equality chains directly under the (in)equality signs, by putting an underset which puts a vertical line starting from the sign and going ...
8
votes
3answers
113 views

How do I display verification of propositional logic in this way?

I want to typeset something like the following picture. I came up with \documentclass[oneside,12pt]{article} \usepackage{microtype} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage{...
3
votes
1answer
25 views

Centering text in aligned environment

How can I center the text between the inequalities? ATM it seems that they are right-aligned. \documentclass{article} \usepackage{amsmath} \begin{document} \[ \begin{aligned} 15 ...
2
votes
2answers
64 views

math: \textstyle won't work

I'm trying to reproduce this math thingy in LaTeX: What I've currently done is this: \documentclass[oneside,12pt,pointednumbers]{scrartcl} \usepackage[ngerman]{babel} %Deutsche Sprachunterst√ľtzung ...
3
votes
2answers
42 views

Alignat environment changes its behaviour in one document

I have the following problem: I am writing my PhD and the alignat environment changes the behaviour during the document. Here is an example: \documentclass[12pt, a4paper]{book} \usepackage[utf8]{...
1
vote
1answer
50 views

Align a cases equation with another equation vertically on the same line

I am using the following to align the two equations. However, they are not vertically on the same level. How should I fix it? \documentclass{article} \usepackage{amsmath} \begin{document} \begin{...
2
votes
1answer
169 views

Aligning equations in tabular with aligned environment

I am trying to align equations in a tabular environment. Having read that align and align* don't work in tabular, I found this thread: Aligned equations in tables which suggests using the aligned ...
6
votes
1answer
80 views

Purpose of DOTSB in definition of \iff

What exactly is the purpose of the \DTOSB in the definition of \iff? There is a mention in Is there a left-handed equivalent of \implies? that the \DOTSB makes \iff "dots aware". But, when I try to ...
1
vote
2answers
56 views

How can we force one line proof environment to stick to its associated theorem environment?

In my LaTeX document, some of the proofs are one-liners: \documentclass[letterpaper]{article} \usepackage{amsmath} \usepackage{amsthm} \usepackage{lipsum} \theoremstyle{plain} \newtheorem{theorem}{...
22
votes
2answers
605 views

Is eqnarray really obsolete?

I just learned in eqnarray vs align that eqnarray should be avoided in general. Ok, so I started looking at my documents to get rid of it and (as suggested) use some environment of the amsmath package ...
1
vote
1answer
78 views

multi line math in pgfplots labels

Quick and maybe easy question, did some research on my own but didn't lead anywhere... Is there a way to use a split or multline environment inside a pgfplot label? Maybe ditching the label altogether ...
3
votes
3answers
36 views

Error with ifacconf.cls and subequations with more than twelve equations

I'm working on a paper for an IFAC conference for which you're supposed to use their ifacconf.cls, resulting in a fairly standard layout. However, you get an error when you use subequations (amsmath) ...
2
votes
0answers
42 views

too much spacing between equations and text if line before equation is full [duplicate]

I have a problem when equations appear in the text without a linebreak. It seems like an additional spacing before an equation is inserted, when the line before the equation is just full until the end....
4
votes
2answers
49 views

Not getting alignment that I want in an alignat environment

In the following display, $+ \frac{1}{4!}$ in the third line of the alignat environment should be aligned directly below $+ \frac{1}{2!}$ in the second line. Depending on the spacing in the corrected ...
1
vote
1answer
115 views

TeXworks compilation error when using ^ as a plain text

In my TeXworks (MikTeX 2.9) editor, the following file compiles correctly. But when I change sin-1(x) to sin^-1(x) the following error occurs. I thought TeXworks would treat sin^-1(x) just as a plain ...
5
votes
1answer
68 views

Underbrace overlapping text

I am trying to type the equation in the figure below. The text on the brace is long and it does not wrap around. Can you help me to solve the problem? Thanks. Equation: \documentclass{article} \...
3
votes
1answer
43 views

prevdepth related error only in case of abscence of whitespace

In the file given below, I am using macros for equations and their environment. The equations use breqn package for breaking them when the width available is not sufficient. I am getting the error ...
8
votes
1answer
125 views

How to raise the output of \genfrac?

I want to write rational numbers in mixed-numeral notation. To do so, I currently use \tfrac (AmSLaTeX): \frac{5}{4} = 1\tfrac{1}{4} But the fractional part is still too big for my taste. Therefore ...
2
votes
1answer
82 views

Monospace font in cases environment

I have this code: \[ text \begin{cases} text, text \rightarrow text\\ text \rightarrow text, text, text, text text \end{cases} \] ... \[ text \begin{cases} text text \rightarrow text, text text, text\...
3
votes
4answers
186 views

“Such that” typesetting for multi-variable equation having two variables after the pipe

What if I have a multi-variable equation and I want to put two 'given that' conditions? For example, say an equation contains two variables 'x' and 'y' and I want to state its values after the pipe, ...
6
votes
1answer
65 views

Having regular text within a lemma

I want the following lemma: Given k\"ahler metric $g_{\al \overline{\be}}$ with associated Ricci curvature $ \text{Ric} =R_{\al \overline{\be}}$ the Ricci form defined by \begin{equation*} \p (X,Y)...
2
votes
0answers
30 views

What is the difference between \begin{gather} and \begin{gather*}? [duplicate]

I guess the asterisk has a general meaning at that position and probably should know it, but I just can't find it in amsmath manual.
2
votes
1answer
62 views

Using background color in AMSmath

I'm using \(\frac{\colorbox{yellow}{a-b}}{c-d}\) to highlight numerator only. But (as suggested in this post) how do we use \colorbox{<color>}{\(<math content>\)} format to achieve the ...
5
votes
3answers
201 views

Split equation using alignat*

Consider the following MWE \documentclass{article} \usepackage{amsmath} \begin{document} \begin{alignat*}{2} (b_{t+1}) &:\quad & \left(\frac{\beta}{1 + \gamma}\right) E_{t}\left\{\...
5
votes
1answer
96 views

How to get the straight vertical line next to derivatives?

I am trying to get this to display: My current attempt is : \begin{equation} \begin{align} \frac{\dd{x_c^{*}(t,u)}}{\dd{u}}=\gamma + \alpha \lambda \{[r(t)-x(t,0)]\\ + \frac{1}{1+\alpha\beta\...
3
votes
2answers
168 views

How to display an integral equation in LaTeX?

I want to display something like: My current attempt is : \begin{equation} Z=min E \int_{0}^{\infty} exp(-\rho t)\{ \alpha^2[r(t)-x(t)]^2+[\lambda ^ {-1}\frac{\dd{x(t)}}{\dd{t}}]^2 \} \dd{t} \end{...
2
votes
1answer
58 views

Spacing before parenthesis in math mode

Suppose, I have something like \overline{q}_{l m_1}'(i) \overline{q}_{l m_2}'(i) \overline{q}_{l m_3}'(i) Now, this renders to which looks rather unpleasant. How can I reduce the spaces in front ...
8
votes
1answer
48 views

How to define ReDeclareLargeMathOperator

I want alter an existing math operator by applying a macro to it. In the MWE the \ReDeclareLargeMathOperator applies the \ProcessSymbol macro which in this example changes the color of the symbol as ...
5
votes
4answers
189 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 ...
2
votes
1answer
52 views

Equations not properly centered when using \tag in gather* environment

Consider the following MWE: three boxes, all the same width, in a gather* environment. I expect that all boxes will be centered around the same vertical line. However, the length of the tags messes ...
4
votes
1answer
94 views

Amsmath Cases syntax

The amsmath cases environment seems to require being placed within \[...\]. What is that syntax? Amsmath documentation does not include these square brackets, yet cases won't compile without them.
0
votes
1answer
26 views

How to used aligned environment and enable equation number

How is it possible to use the aligned environment and enable equation numbering for both equations in the example below: \documentclass{article} \usepackage{amsmath} \begin{document} \begin{align} \...
3
votes
1answer
110 views

Why does whitespace above \vdots disappear in bmatrix?

While creating presentations with beamer, I have the problem described in broken matrix gaps in brackets. Using the solution proposed by Loop Space, I discovered that \vdots have an annoying ...
3
votes
2answers
73 views

write [2] next to an equation [duplicate]

I have a code that looks like this : \[\Omega_\Lambda{}_0 = 0,6911 \tag {2}\] in the pdf the (2) has round parentheses. I would like square brackets [] to figure instead : [2] Can you give me the ...
3
votes
2answers
100 views

Is there an environment similar to alignat, but embedded in a single equation?

As explained in this answer, the difference between align and alignat lies chiefly in the presence of some spacing between even and odd columns. I would like to get the same result as with alignat (...
3
votes
1answer
56 views

colored underline with vertical spacing

How can I add a vertical spacing between the underline and other items by adjusting the \colorunderline command? \documentclass[12pt,b5paper]{article} \usepackage{amsmath} \usepackage{color} \...