3
votes
2answers
129 views

Macro for moving hat symbol up

I use mathpazo font package and I think the hat symbol is too low. Can I make a macro to change behavior of all my hats? This question has a good example, but I don't want to have to retype all of ...
8
votes
4answers
117 views

How to reduce the space between the hat of overset and the symbol?

I would like to place the \rightharpoonup on r and get them closer. I had tried the \overset and \Rvector package. But the spacing of the former is too much. And the latter performs bad when placing ...
2
votes
0answers
32 views

Three dots above a symbol look weird [duplicate]

In math mode, when I type \dot{x}, \ddot{x}, \dddot{x} the third expression doesn't look like the two previous ones. The three dots are widely spaced and higher above the symbol. Is there a way to ...
1
vote
1answer
78 views

How to write $\~{B}$

How to write $\~{B}$ in latex. During writing it shows that ! Please use \mathaccent for accents in math mode. Please suggest me.
2
votes
0answers
34 views

Widecheck over two \hat [duplicate]

I need to write a formula with a \widecheck over two \hat. The equation is the following: \documentclass[a4paper,11pt]{article} \usepackage{amsmath} \usepackage{amsfonts,amssymb,mathabx} ...
4
votes
2answers
85 views

Math mode accents

In my long document I, sadly, have to use several accents to denote different kinds of symbols. Currently, I use primes ($x'$), hat, tilde, and overline. In addition I use two colored symbols (red ...
5
votes
2answers
376 views

Can I move the hat symbol vertically upwards?

I'm using mathpazo to format a document and have just become annoyed that a hat appears to be rendering too close to the letter it's decorating. I'd like to move the hat upwards, but am not sure how ...
13
votes
3answers
414 views

How do I get two mathrings centered over a variable?

I am trying to represent a second order, dimensionless derivative by two open circles overtop a variable. I understand how to do one (\mathring v), and I understand how to do multiple solid dots ...
11
votes
2answers
300 views

mathabx and mathtools: \widetilde{} and \dot{} problem

The problem is the odd placement of g in the second line in the align environment. Strangely, the \dot{}-character is only misplaced if it is followed by another character. I need the mathabx package ...
2
votes
1answer
3k views

How to write two dot above a letter?

the two dots above a letter represents two derivative of varible t. My method: \documentclass[UTF8]{ctexart} \usepackage{amsmath} \usepackage{amssymb} \usepackage{graphicx} \usepackage{epstopdf} ...
5
votes
2answers
79 views

Set delimiters with accents

I'm trying to set a set delimiter using some mathematical accents For example: \documentclass{acm_proc_article-sp} \usepackage{amsmath} \begin{document} $\left\{{$\hat{P}$,$\hat{Cl}$}\right\}$ ...
5
votes
0answers
104 views

Translating a math book written in plain TeX into Swedish - problem with accented characters

I'm translating a wellknown calculus book into Swedish. The source code is plain TeX and is of course littered with commands, macros and what not that won't work in LaTeX. I need to be able to use the ...
6
votes
3answers
302 views

Appearance issues with \bar{} and \underline{}

The following code \documentclass{article} \usepackage[T1]{fontenc} \usepackage[latin9]{inputenc} \begin{document} \[ \left[\underline{x},\bar{x}\right] \] \[ \left[\underline{t},\bar{t}\right] \] ...
11
votes
3answers
120 views

Mirror tilde accent

Does anybody know if there is a "mirror" tilde accent command in any package? That is, the "wiggling" of the tilde accent going in the other direction. Something like defining this \backtilde ...
5
votes
2answers
246 views

Arrow accented with a dot (natural transformation)

In Mac Lane's "Categories for the Working Mathematician" I came across an arrow accented above with a dot, indicating a natural transformation. I failed to find an existing symbol for this. It looks ...
6
votes
3answers
270 views

Wide inverted breve overset

I want an inverted breve that spans the width of two symbols rather than one. I have tried the suggestions in: inverted breve accent in math mode , and in How to put \smallsmile or \smallfrown on top ...
2
votes
1answer
325 views

How to type the letter “i” with two dots (diaeresis) in math mode? [duplicate]

I would like to type the letter "i" in math mode, but with two (horizontally aligned) dots rather than with just one. I know there is \ddot{i}, but that puts the two dots on top of the existing one, ...
3
votes
2answers
253 views

How to redefine \hat{H} as \hat{\cal H}?

I would like to redefine \hat{H} as \hat{\cal H} only for this particular letter (for Hamiltonian symbol in physics). Thank you very much.
1
vote
0answers
23 views

how can I get a tilde under a variable in math mode? [duplicate]

s ~ such like this, but I want them to be combined to identify a vector. thx for help~!
2
votes
1answer
103 views

Accents package incompatible with bm?

Reading egreg's answer to Decrease length of underline in math, I wanted to use the accents package for lower bars in math mode. It seem however that the package is incompatible with the bm package. ...
4
votes
1answer
1k views

\hat and \widehat look terrible: fixing width and better positioning?

I want to make the use of quantum mechanical operators explicit in my text using \hat{A} or \widehat{A}. The problem is that depending on the symbol under the accent it looks either misplaced or too ...
1
vote
3answers
1k views

Hat accent on bold greek letters in math mode

I would like to insert an hat accent on bold letters/symbols in math mode. For latin letters, e.g. the q char, I insert this commands in my preamble ...
18
votes
1answer
301 views

Drawbacks of redefining math accents with extra leading {}?

As I discovered through the non-bug latex/4253, TeX has a (mis)feature whereby it ignores braces around a \mathaccent construction: ${a_b}_c$ works, but ${\tilde a_b}_c$ fails with a "Double ...
3
votes
1answer
121 views

How to increase size of the diacritic/accent mark selectively without changing the alphabet size

I am using a typeface that has limited support for letters with diacritics. I am looking to use the features in latex (I'm using xetex on ubuntu) for providing the glyphs I am missing. My font has ...
4
votes
5answers
318 views

Right superscript dot

I would like to achieve the following: a dot right of an expression with this minimal example \documentclass{article} \usepackage{amsmath} \usepackage{accents} \newcommand{\dotr}[1]{% ...
4
votes
3answers
277 views

Character with wedges over and under

How can I have this character, I need f and U ?
5
votes
1answer
4k views

Writing å, ä, ö in mathmode

I use a Swedish usepackage and when I write, for instance, å in formulas I get an error message please use \mathaccent …. Here's what I try to write: \begin{align} \begin{split} {R} = ...
5
votes
3answers
815 views

Unusual custom math accent

I want to introduce a new type of math accent that is basically an overbar, but also has small (scriptscriptsize?) text set to the right of the bar. Basically something like $\bar{A}^{\mathrm{co}}$ ...
4
votes
3answers
147 views

Index with accented letters

I'm trying to typeset the following $Q_å=l_å \cdot m$ But LaTeX won't typeset these special or accented letters in my document! Is there a simple way to achieve this?
2
votes
2answers
178 views

How to make circumflexes wider but still of a fixed size in XeTeX?

Circumflexes looks too small and they are to close to the symbol in the PDF generated by XeLaTeX from UTF-8 source with Asana Math font for mathematics: Source: \documentclass[12pt]{article} ...
8
votes
1answer
3k views

Double-bar notation for second-order tensors

I want to use the double-bar notation for second-order tensors, which is common in continuum mechanics (e.g. for the strain and stress tensors). I've searched the Comprehensive LATEX Symbol List but ...
4
votes
1answer
155 views

Source of \bar{} accent in math mode

I have a font that I have installed with fontinst in psnfss and which I use for math italic. But it is clear from the PDF files generated with that font that the bar accent in math mode is not ...
7
votes
2answers
7k views

Really wide hat symbol

Is there any way to get a hat wider than widehat? Why doesn't \widehat{abcdefghijklmnopqrstuvwxyz} really go over all of it?
6
votes
3answers
686 views

Umlauts in math mode

I'm trying to use German umlauts in math mode but get the known error: LaTeX Warning: Command \" invalid in math mode on input line ##. So I could think of two possible solutions: Use \text instead ...
12
votes
3answers
8k views

\bar vs. \overline - when to use what, semantically?

Following the question "The \bar and \overline commands" which is simply about the lengths of both, I'd like to know when to use \bar and when to use \overline from a semantically viewpoint. I always ...
1
vote
1answer
188 views

Problem with text mode in \substack

I have defined a differential command in this way \let\underdot\d \renewcommand{\d}{\ifmmode\mathop{}\!\mathrm{d}\else\expandafter\underdot\fi} so that I don't loose the text accent (I don't know ...
3
votes
2answers
265 views

How can I get a dot over a vector?

I would like to combine, somehow, \vec{x} and \dot{x} so that I get an x with a vector arrow over it and a dot over that. Any suggestions?
2
votes
1answer
168 views

Accents not positioned correctly over rsfs letters

On my computer, the file \documentclass{article} \usepackage{mathrsfs} \begin{document} $\tilde{\mathscr M}$ \end{document} renders as But shouldn't the tilde be shifted to the right, so ...
6
votes
1answer
258 views

Simple way to place an array of symbols above a letter?

I would like to typset something similar to the symbol used for the "generalized spherical harmonics". This involves placing an array of dots above a letter. The array will have two columns, and the ...
10
votes
2answers
428 views

Is direct utf8 input of combining diacritics in math mode possible with lualatex?

I am trying to typeset a document with combining diacritics directly input in it. I use LuaLaTex. Here is a minimal example illustrating the original issue: \documentclass{minimal} ...
4
votes
1answer
102 views

Define commands for symbols with index, combine with accents

To facilitate writing of formulas that contain symbols with subscript, I often define custom commands. However, combining these with accents gives unpleasant results. Is there any way to define such ...
6
votes
1answer
1k views

How to write properly math accent for letter i?

When it is requested to write letter "í" in math mode, it happens that $\acute{i}$ is not the right answer as it could be expected: the accent (´) is written over the letter (i), without ...
4
votes
2answers
2k views

Making hats (and other accents) bold

I've been typesetting some equations, and I've found that the default behavior accents like \hat, \bar, \tilde, etc. makes a rather small and easily-missed mark. Is there some way to make the accents ...
6
votes
1answer
197 views

Is there any more convenient way to insert Math-mode Accents?

Is there any more convenient (concise) way to insert Math-mode Accents? For example is it possible to use a syntax like following: a\^ %instead of \hat{a} a\- %instead of \bar{a} a\~ %instead of ...
3
votes
1answer
382 views

undertilde package provides inconsistent vertical spacing between nucleus and accent

My own answer is provided below, but feel free to add your own improvement as well. The \utilde command from the undertilde.sty package places different amounts of vertical space between the accent ...
7
votes
1answer
1k views

Using Cambria Math in XeLaTeX

Take a look at the following images, XeLaTeX typeset formula: Word generated formula: Note specifically the difference of the \hat implementations at g_i and g_i^2 in XeLaTeX. In Word the two ...
14
votes
2answers
373 views

Why does \widehat behave differently if I insert \hspace{0pt}?

I am getting some inexplicable behaviour from \widehat: \documentclass[12pt,a4paper]{article} \usepackage{amsfonts} \begin{document} \[ \fbox{$\widehat{\mathcal{C}}$}, ...
2
votes
2answers
722 views

Erd\H{o}s with \mathbb

I am trying to write Erd\H{o}s in a LaTeX file but it gives me an error and says "\mathbb allowed only in math mode." Apparently I use a library that has other plans for \H is there something I can ...
4
votes
1answer
136 views

How can I draw a straight vertical accent (like textvbaraccent) over a symbol in math mode? [duplicate]

Possible Duplicate: How can I draw a dot under a symbol in math mode? I'm looking for the equivalent of the \textvbaraccent command for the math mode.
5
votes
2answers
321 views

How can I draw a dot under a symbol in math mode?

I'm trying to find the equivalent to \d (or \textsubdot) for the math mode.