48
votes
Accepted
Position the limits of Sum
The problem is that you're trying to use displaystyle limits in text mode. Which is not that good, as I explain below.
I don't know if it's typographically correct but the code is
$\sum\limits_{i=0}...
- 11.3k
21
votes
Accepted
How to create a summation symbol with a vertical bar?
Here's a mixture of \ooalign and picture mode.
\documentclass{article}
\usepackage{amsmath,pict2e}
\makeatletter
\newcommand{\barredsum}{%
\DOTSB\mathop{\mathpalette\@barredsum\relax}\slimits@
}
\...
- 1.1m
18
votes
Writing math formula in LaTeX, 'undefined control sequence'
You have
\nablaf
which is probably undefined, I guess you wanted
\nabla f
(Please always post a complete document that generates the error, it is much easier to debug then)
- 741k
17
votes
Accepted
How to make text appear in the middle of a phantom in math mode?
You don't really need to use \mathclap, you can just place what you want to center in a box of the appropriate width.
\documentclass{article}
\usepackage{amsmath}
\usepackage{calc}
\newcommand*{\mask}...
- 19.9k
17
votes
Accepted
How to make underbracket thinner
Excerpting from p. 14 of the user guide of the mathtools package (highlighting added):
The user guide says that the default width of underbrackets is ca 5/18ex = ca. 0.28ex. The following screenshot ...
- 495k
15
votes
Accepted
\DeclarePairedDelimiter with \left & \right no longer works
You should not use left and right in the DeclarePairedDelimiter definition. Those are automatically used when you use the command defined there.
You would use the starred version for autoscaling, i.e....
- 11.3k
14
votes
Accepted
Extensible triple-bracket delimiter with a new symbol
Encouraged by David Carlisle, I eventually resolved to post this answer. I had begun to write a comprehensive one that explained how the solution works, but I soon realized that it would have largely ...
- 21.4k
14
votes
\mathbb not working in \underset
The problem is caused by package flexisym. Not only \mathbb{R} is affected but also \sup is in an italic font.
Anyway, \underset is not the right command for putting something below the "operator" \...
- 270k
14
votes
What is the difference between \\* and \\ *?
AMS matrices use a modified form of lookahead that does not skip white space looking for * and [ this is so that you can have
\begin{matrix}
a & b \\
[x] & y
\end{matrix}
with the [ taken as ...
- 741k
13
votes
Accepted
Mathtools' underbrackets and MinionPro
Let's look at the definition of \underbracket
\providecommand*\underbracket{
\@ifnextchar[
{\MT_underbracket_I:w}
{\MT_underbracket_I:w[\l_MT_bracketheight_fdim]}}
\def\MT_underbracket_I:w[#...
- 1.1m
13
votes
Accepted
How can I define a big plus operator that works like \bigcup?
A rip-off of my answer at How are big operators defined?. Two completely separate macros are provided (\foo and \barr), depending on whether one wishes the \displaystyle version to grow bigger or ...
- 234k
12
votes
Accepted
Best Practice: Package for Mathematical Documents - amsmath and Beyond
multi-question questions don't really fit the site format but..
Do you think that it is Ok to recommend the mathtools package instead
of amsmath package. The mathtools package calls the amsmath ...
- 741k
12
votes
There's a bump in the implies glyph
Package amsmath uses \Longrightarrow to get the \Implies symbol. \Longrightarrow and \Longleftarrow are composed symbols with the standard fonts (unless a math font is used, which contain ready glyphs ...
- 270k
12
votes
Accepted
How to write the LaTeX code of this Meijer G function
With a handier syntax:
\documentclass{article}
\usepackage{geometry} % more generous width
\usepackage{amsmath}
\usepackage{xparse}
\ExplSyntaxOn
\NewDocumentCommand{\MeijerG}{smmmm}
{
\...
- 1.1m
12
votes
How to create a summation symbol with a vertical bar?
To try to improve one of egreg’s answers is an exercise that is, at the same time, both enjoyable and instructive—plus, it can give bragging rights. (;-) In this case, I deem that the accepted ...
- 21.4k
11
votes
Accepted
\norm symbol have different sizes in equation
This is because the subscripts i and j have different depths and you are using automatic scaling.
There are two easy ways to fix this, since you are already using the mathtools and commath packages:
...
- 5,681
11
votes
Peculiarities in \norm* from physics.sty
Analysis
Let's see what physics.sty does. First, the definition of \norm:
\DeclareDocumentCommand\norm{ l m }{\braces#1{\lVert}{\rVert}{#2}} % Norm
The l argument type collects everything up to (...
- 1.1m
11
votes
Accepted
Another solution to create a set with two conditions
Writing \eta:=\eta(x,t) has no mathematical meaning whatsoever. Since apparently D is a subset of the plane, functions over D are two-variable by definition; how you call the variables is completely ...
- 1.1m
11
votes
How to make text appear in the middle of a phantom in math mode?
A version that works in all styles.
\documentclass{article}
\usepackage{amsmath}
\makeatletter
\newcommand{\mask}[2]{{\mathpalette\mask@{{#1}{#2}}}}
\newcommand{\mask@}[2]{\mask@@{#1}#2}
\newcommand{...
- 1.1m
10
votes
Accepted
How to get the cases brace to be a link
One can try and adapt your solution How to color delimiters, which is based on collecting the material and using it in a \vphantom. The amsmath package has the convenient \collect@body to help with ...
- 94.9k
10
votes
Position the limits of Sum
The problem is that you didn't use displaymath operators ($$...$$ or \[...\]; I recommend the latter). If you want such a structure in inline math, you must use \limits. By implementing my solution (...
- 1,727
10
votes
How can I define a big plus operator that works like \bigcup?
One can easily make the “big plus” the same size as \sum:
\documentclass{article}
\usepackage{amsmath}
\usepackage{graphicx}
\makeatletter
\newcommand{\bigplus}{%
\DOTSB\mathop{\mathpalette\mattos@...
- 1.1m
10
votes
Accepted
siunitx: Abbreviations are not printed with mathtools, fontspec and unicode-math
This is imho due to a problem in unicode-math, \mathrm{\upmu} tries to output the symbol with the textfont and so you get missing character message. This affects siunitx as it uses internally \mathrm. ...
- 321k
10
votes
Underbrace using STIX2 math font
One should load the mathtools package before the fontspec and/or unicode-math packages. Note: Since the polyglossia package loads fontspec automatically, you should also take care to load mathtools ...
- 495k
10
votes
How to make underbracket thinner
The thickness of brackets can be specified in the first optional argument of \underbracket and \overbracket. The default thickness is the height of $\braceld$ (in current math font).
\documentclass{...
- 25.8k
10
votes
Suppress warning by unicode-math regarding mathtools
As far as I can see the unicode-math documentation does not state explicitly which warnings are predefined. Searching the code for the string mathtools one finds the lines
\msg_new:nnn { unicode-math }...
- 29.9k
10
votes
mismath.sty bug?
The mismath package has been recently updated to load ibrackets which should help in typesetting the perverse1 French notation for intervals.
% \changes{v2.1}{2022/12/26}{
% - Improved management ...
- 1.1m
9
votes
How to write the LaTeX code of this Meijer G function
This code provides the formula which you give in the image.
\documentclass{article}
\begin{document}
\begin{math}
G_{q,p:p_1,q_1:p_2,q_2}^{n,m:m_1,n_1:m_2,n_2}\left(
\begin{array}{c}
1-\alpha-...
- 3,570
9
votes
Accepted
Missing space with DeclarePairedDelimiter
There should be no space between the operator name and a delimiter, so the output one gets from
\sup_{n}\lvert a_{n}\rvert
is right (and is one of the reasons why amsmath introduced \lvert and \...
- 1.1m
9
votes
Accepted
How do put \overbrace across an (aligned) equals sign?
Not quite elegant but works
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{flalign}
\rlap{$\displaystyle\overbrace{\phantom{f = \sum_{i\in I} a_i}}^{\text{ my notes }}$}
f &...
- 29.9k
Only top scored, non community-wiki answers of a minimum length are eligible