math-modestacking-symbols
I've got the following problem:
I want to set the letter "W" atop a "\vdash", like here:
I've tried to get this result with \atop, \stackrel, and \above, but didn't get the wished result. All these put the W completely over the vdash:
How can I get the first result?
PS: here is a sample file:
\documentclass{article}
\begin{document}
$A \stackrel{W}{\vdash} x$
\end{document}
You can simply remove the option math when loading mathspec.
MWE
\documentclass[11pt]{article}
\usepackage{mathspec}
\setprimaryfont{Linux Libertine O}
\begin{document}
1 $1$ $\mathrm{1}$ $\text{1}$
\end{document}
Output
Loading mathspec with the math option forces mathspec to load fontspec without the no-math option.
And the fontspec manual states:
If you find that
fontspecis incorrectly changing the maths font when it should be leaving well enough alone, apply the[no-math]package option to manually suppress its maths font.
The key was to set your redefinition of \vec in its own group (as denoted with the extra set of braces).
\documentclass{article}
\usepackage{bm}
\renewcommand{\vec}[1]{{\boldsymbol{#1}}}
\newcommand{\gyrobias}{\vec{b}_{g}}
\newcommand{\est}[1]{\hat#1}
\begin{document}
$\est{\gyrobias}$
\end{document}
If this approach does bad things to \vec in some other way, one could always apply the extra group to the definition of \gyrobias, instead:
\documentclass{article}
\usepackage{bm}
\renewcommand{\vec}[1]{\boldsymbol{#1}}
\newcommand{\gyrobias}{{\vec{b}}_{g}}
\newcommand{\est}[1]{\hat#1}
\begin{document}
$\est{\gyrobias}$
\end{document}
FOLLOW UP
With this follow up, I address the issue of getting a \hat or \dot over the intended letter, using the syntax of the OP. However, it does not address the issue of multiple diacritics over the same letter, as in \dot{\est{\camrot}}.
\documentclass{article}
\usepackage{bm}
\renewcommand{\vec}[1]{\boldsymbol{#1}}
\newcommand{\gyrobias}{{\vec{b}}_{g}}
\newcommand{\rquat}[2]{{\overline{q}}^{#1}_{#2}}
\newcommand{\camrot}{\rquat{O}{C}}
\newcommand{\pos}[5][]{{_{#5}}#1{\vec{#2}}_{#3 #4}}
\newcommand{\trans}[4][]{\pos[#1]{t}{#2}{#3}{#4}} %\trans{from}{to}{in}
\newcommand{\campos}[1][]{\trans[#1]{O}{C}{O}}
\newcommand{\est}[1]{\applydiacritic{\hat}{#1}}
\newcommand{\Dot}[1]{\applydiacritic{\dot}{#1}}
\newcommand\applydiacritic[2]{\ifx\campos#2\campos[#1]\else\expandafter#1#2\fi}
\begin{document}
$\est{\gyrobias}$\medskip
$\camrot\quad\est{\camrot}\quad\Dot{\camrot}$\medskip
$\campos\quad\est{\campos}\quad\Dot{\campos}$\medskip
\end{document}
The OP points out that the above code does not work with amsmath. Here is a fix for that, though I note that amsmath package affects the placement of diacritical marks over the letter "t", and I have verified that it is not related to my solution here, which can be seen in the first line of my output (when amsmath is inserted/removed).
\documentclass{article}
\usepackage{bm}
\usepackage{amsmath}% THIS PACKAGE EFFECTS PLACEMENT OF DIACRITICS OVER \boldsymbol{t}
\renewcommand{\vec}[1]{\boldsymbol{#1}}
\newcommand{\gyrobias}[1][]{#1{\vec{b}}_{g}}
\newcommand{\rquat}[3][]{#1{\overline{q}}^{#2}_{#3}}
\newcommand{\camrot}[1][]{\rquat[#1]{O}{C}}
\newcommand{\pos}[5][]{{_{#5}}#1{\vec{#2}}_{#3 #4}}
\newcommand{\trans}[4][]{\pos[#1]{t}{#2}{#3}{#4}} %\trans{from}{to}{in}
\newcommand{\campos}[1][]{\trans[#1]{O}{C}{O}}
\newcommand{\est}[1]{\applydiacritic{\hat}{#1}}
\newcommand{\mydot}[1]{\applydiacritic{\dot}{#1}}
\newcommand\applydiacritic[2]{%
\ifx\gyrobias#2\gyrobias[#1]\else
\ifx\campos#2\campos[#1]\else
\ifx\camrot#2\camrot[#1]\else
#1#2\fi\fi\fi}
\begin{document}
$\boldsymbol{t}\quad\hat{\boldsymbol t}\quad\dot{\boldsymbol t}$\medskip
$\gyrobias\quad\est{\gyrobias}\quad\mydot{\gyrobias}$\medskip
$\camrot\quad\est{\camrot}\quad\mydot{\camrot}$\medskip
$\campos\quad\est{\campos}\quad\mydot{\campos}$\medskip
\end{document}
Best Answer