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

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3
votes
1answer
50 views

creating conditional array using iopart

I need to write a conditional equation using iopart.cls, a class that doesn't work with amsmath. Usually I'd use the cases environment from amsmath like so: \begin{equation} \mathrm{sgn}(t) 1, ...
1
vote
0answers
16 views

Horizontally align \vdots with equal signs in aligned environment [duplicate]

I have a number of equations aligned at the equal sign. I insert a line containing just \vdots to indicate a bunch of steps and then equations again. How I can make the \vdots align with the equal ...
2
votes
2answers
1k views

Problem with cross referencing using gather environment

I am using gather environment to write bunch of equations. When I try to cross-reference those equations, the equation number doesn't show up. Here is my code \documentclass[12 pt]{article} ...
3
votes
2answers
43 views

Putting a tag in aligned enviroment

I want to set a counter in the following two lines (to the right) \[ \left\{ \begin{aligned} & u_t = H(x,t,Du)&\text{ in }& \mathbb{R}^n\times (0,T) \\\\ & u(x,0)=u_0(x) & \text{ ...
8
votes
2answers
2k views

In exponents, parenthesis too small, \big too big

When something big (a fraction, a sum, an integral...) appears within a pair of parenthesis, one can typically use \left(...\right) to get delimiters large enough to surround the contents. The ...
8
votes
1answer
169 views

Adaptively sized delimiters that don't go beyond the size of \bigl and \bigr

I would like adaptively sized delimiters, but only up to \bigl/\bigr-size. That is, there is variation only between ordinary/normal size and one size higher. \documentclass{article} ...
12
votes
2answers
283 views

Manually controlled size of delimiters in macros

I am using the amsmath package and I'd like to control the size of my delimiters manually, i.e. using the \bigl, \Bigl, ... , \Bigr, \bigr commands, instead of \left, \middle, \right. Now I want to ...
-1
votes
2answers
83 views

Confusing missing $ [closed]

Can anyone help with this. I'm not sure at all what I'm doing wrong but i get an error Missing $ inserted. $ on the 2nd line with c)\ The rest of the text works fine and there are ...
3
votes
2answers
102 views

how to give some text an equation number

I want to be able to write the following in LaTeX: We make the further assumption that \begin{equation} \label{eqn:assumption} There is a bounded linear operator $B:X\to X^*$ such that ...
2
votes
2answers
251 views

How to make a table more vertically compact?

I finally managed to use the cases construct within a table: \documentclass{article} \usepackage{amsmath} \begin{document} \begin{table} \begin{tabular}{l p{7cm} ll} \hline a & b & c \\ ...
1
vote
1answer
126 views

How to make nested fractions bigger? [duplicate]

I have a nested fraction on the right-hand side of an equation. I use the LaTeX code as follows to produce the equation: \begin{equation} \frac{1}{T_{ex}} = ...
32
votes
2answers
21k views

What is the difference between \dfrac and \frac?

The title says it all, both \dfrac{a}{b} and \frac{a}{b} make fractions, so what is the difference between the two?
0
votes
1answer
59 views

Cant get theorems in an appendix

I get the error \begin{document} ended by \end{theorem}. \end{theorem} and Environment theorem undefined. \begin{theorem} when trying to compile this latex document. Here is the problematic ...
3
votes
1answer
49 views

Formatting an equation environment to fit within the margins

\mathcal{P}^s_{\delta}(F) = sup \Bigg\{ \sum_{i}|B_i|^s : \{B_i\} \text{is a collection of disjoint balls of radii at most $\delta$ with centres in F} \Bigg\} This piece of text wont stay in the ...
5
votes
1answer
138 views

Show integration limits above & below the integral

Well considering this code, the "E" is shown after the integral: \begin{equation} m = \iiint_E \rho \ \mathrm{d}V \end{equation} The limit is shown slightly behind the number, how can I place it in ...
1
vote
1answer
73 views

Strange artifact when using xrightarrow [duplicate]

When using xrightarrow, I sometimes gets weird artifacts on the arrow: it looks like the arrow is somewhat "doubled" in the middle. But this only happens when zoomed out; when I zoom in very close, ...
16
votes
5answers
2k views

Underbrace under sqrt content

I am trying to use underbrace to clarify the arguments to a sqrt. However this causes the square root sign to reach all the way down to the bottom of the text under the brace(s), which is not what I ...
3
votes
2answers
65 views

Error: Extra }, or forgotten \right in split

Can someone tell me what's wrong with this? because i can't figure out where the missing \right( is. \begin{equation} \begin{split} Μ=&-\pi \rho \frac{c^{2}}{4} ...
3
votes
1answer
44 views

Overfull hbox with fleqn and autonum

I am using autonum and amsmath with the fleqn option to left-align equations. However, this combination appears to generate Overfull \hbox warnings at the \begin{document} line. I am using the ...
1
vote
1answer
108 views

Blank or no arrow in a commutative diagram

I learned from this nice post that a commutative diagram with the CD environment can have arrows pointing and their commands: right @>>> left @<<< down @VVV up @AAA ...
1
vote
1answer
35 views

Weird autocompletion in vim-latex [duplicate]

I am trying to write some inline equations in vim-latex, but when I type \(( (To start an equation with a parenthesis), vim replaces it with \\left( \right)<++>. What is it doing, and how do I ...
6
votes
1answer
93 views

Align to top of box

This latex code (uses amsmath and proof) produces the image below: \documentclass{article} \usepackage{proof} \usepackage{amsmath} \begin{document} \begin{equation*} \infer[\forall x ...
2
votes
2answers
1k views

Commutative diagram with parallel arrows in opposite direction

I have a diagram of the following form, written with the package amscd: \begin{align*} \begin{CD} W @>\phi>> X \\ @V{a}V{b}V @V{c}V{d}V \\ Y @>\phi>> Z \\ \end{CD} ...
3
votes
4answers
383 views

Resize CD output from amscd

I am using the package amscd to make commutative diagrams, with CD environment and I want to know how can I change the size of the result (especially make it bigger). I try this \[ ...
4
votes
3answers
254 views

Math equation with cases and division signs

\begin{equation*} \theta({P,\bar{Cl}}) = \begin{cases} S(P,\widehat{Cl}) + (S(P,\widehat{Cl}) \times ((\bar{R}-\widehat{R})/\bar{R})) & \widehat{Cl} \textless \bar{Cl} \\ ...
2
votes
0answers
23 views

Space after Proof Environment to next Section [closed]

I am using a modified definition of a proof environment: \makeatletter \renewenvironment{proof}[1][\proofname]{\par \pushQED{\qed}% \normalfont \topsep1\p@\@plus3\p@\relax \trivlist ...
1
vote
1answer
66 views

Visually appealing subscripts with `\intercal`

From this discussion (What is the best symbol for vector/matrix transpose?) I like to use \intercal for matrix/vector tranpose symbol. However, when subscripts get involved it gets ugly: MWE: ...
0
votes
1answer
36 views

Multiline equation in cases with special symbols

\begin{equation*} $\theta$ = \begin{cases} $\eta$ & \text{$\widehat{P} \textless \bar{P}$}\\ $\eta$ & \text{$\widehat{P} \textgreater \bar{P}$} \end{cases} \label{eq: ...
1
vote
1answer
117 views

Write Mathematical Equation

Im writing fraction in an equation. But then when I inserted $\frac{1}{2}$ inside the align*, error says missing }. I don't get it. Removing the code fraction will make my code work. \begin{align*} ...
8
votes
5answers
2k views

Using \label with amsmath nested environments

First of all, I'm not sure these environments are supposed to be nested, but the fact is the alignment comes out exactly how I wanted, and no errors are issued. \documentclass[a5paper]{article} ...
1
vote
0answers
58 views

Math symbols coming out blurry (bitmapped)

I am a LaTex beginner user and I am trying to compile a file for an IEEE publication and for some reason I get blurry (not vector format) math symbols, mostly brackets, \asterisks and integrals ...
1
vote
1answer
155 views

Better extensible arrows

Using amsmath and extarrows packages, we have many extensible arrows. But these arrows look ugly, since some parts in an arrow are boldfaced. Are there any better-looking extensible arrows?
2
votes
2answers
71 views

Getting Examples to look like Theorems/Lemmas/Corollaries

How do you get a latex document to present example in the same bold type face as you can for theorems/lemma/corollaries?
1
vote
1answer
43 views

How to obtain even space between variables in math mode?

When I combine numbers and several variables in an equation, the spacing between the numbers and variables are not even. What is the correct way to display the equation? The red box highlight the ...
1
vote
2answers
81 views

line break in math mode within longtable environment

I have a long mathematical expression within parenthesis which is larger than the column width that I have specified for my table. How do I force it to break the expression onto a new line? ...
2
votes
2answers
95 views

Aligning multiple column equation on left

I would like some equations aligned to the left, inline with text, with equation numbers aligned to the right, and with a middle column aligned with itself. The solution here and other solutions ...
6
votes
1answer
217 views

Opposite of \allowdisplaybreaks

If i load the amsmath package it doesn't allows to break by default alignments across the pages in the multline, align, gather, alignat environments and their starred versions. Howewer it exists the ...
15
votes
3answers
1k views

Long Dashed Right Arrow

Is there a \dashrightarrow equivalent of: \xrightarrow{\hspace*{4mm}} or \longrightarrow or a similar way to fudge it?
5
votes
1answer
74 views

Align after \therefore

If I place my alignment ampersand after a therefore symbol (from amssymb), the proper spacing between the therefore and the rest of the equation is lost. Is there a way to prevent this from happening? ...
2
votes
0answers
49 views

Extra vertical space when using align and no numbering

I think I've found a small bug in the way the showonlyrefs=true option in mathtools works. Consider this semi-minimal example: \documentclass[12pt]{article} \usepackage[utf8]{inputenc} % UFT8 - ...
4
votes
1answer
60 views

Adjusting the size of round parenthesis in an equation

I am not sure what is the common rule in adjusting parenthesis in equations. Let me illustrate my question by the following example \documentclass{article} \usepackage[T1]{fontenc} ...
10
votes
1answer
1k views

Integral limits with amsmath in LuaLaTeX

Also reading the thread about Making integral ∫ use \limits by default with unicode-math I'm not quite happy with the solution. With pdfLaTeX I use the code \documentclass{article} ...
3
votes
1answer
37 views

Clash between amsmath, atbegshi, and texpower packages?

Consider this document: \documentclass{article} \usepackage{amsmath} \usepackage{texpower} \usepackage{picture} \usepackage{atbegshi} \setbox0\hbox{\textbf{TEXT}} \AtBeginShipout{% ...
0
votes
1answer
61 views

Align environment immediately after section break

When I use an align environment immediately after a new section, there is a significantly increased line break between the section and the equation, too large for my taste. Is there a way to make this ...
3
votes
1answer
76 views

mathrm doesn't change back pdflatex (pre-install of texmaker)

I'm having the problem, that commands like \mathrm, \mathbf, ... change the look of the entire line of the equation and not only the code that is wrapped by the braces. I'm using the IEEEAerospaceCLS ...
2
votes
2answers
86 views

How can I use \underrightarrow command with iopart.cls class?

I would like to use \underrightarrow command which is included in amsmath.sty package. But, the publisher forces to use iopart.cls class, which is incompatible with amsmath.sty. Any alternative ...
6
votes
1answer
2k views

Difference between align and alignat environments

What is the difference between align and alignat environments?
4
votes
2answers
192 views

Smashoperator for the vertical space?

I would like to vertically smash a summation sign in a way that the line has a vertical space as if the summation sign wouldn't be there. To illustrate it please see the MWE. The space between the ...
2
votes
1answer
102 views

Can I write $\log^2{x}$ in skmath?

Standard LaTeX has the opportunity to write things like $\log^2{x}$. This is however no longer possible when loading the skmath package, because skmath expects the logarithm to be entered ...
1
vote
1answer
144 views

problem with math equations

I want to use calibri in text and cambria math fonts for equations, with lualatex. When there are no equations to my file everything works ok, but when I add an equation I get an error message ...