I'm having trouble with the spacing of the individual dots that are typeset by \vdots when using the a0poster class. In particular, the dots are much closer together than the dots typeset by either \cdots or \ddots. Does anyone know what causes this and how to fix it??
[Tex/LaTex] Spacing of vdots in a0poster class
postersspacing
Related Solutions
A \left-\right subformula is treated as an Inner atom and this adds some space before and after the subformula, in certain circumstances. One can get the desired behavior by
\usepackage{amsmath}
\newcommand{\ps}[2]{\operatorname{P}_{#1}
\mathopen{}\left(#2\right)\mathclose{}}
so the spacing inserted will disappear (TeX doesn't insert space between an opening atom and an inner one, nor between an inner atom and a closing one).
It's better to define "P" with \operatorname than with \mbox.
As Philippe Goutet remarks, if superscripts or subscripts need to be attached to the closing parenthesis, the definition should be
\newcommand{\ps}[2]{\operatorname{P}_{#1}
\mathopen{}\mathclose{\left(#2\right)}}
The definition of \underbrace in latex.ltx is essentially borrowed from Plain TeX:
\def\underbrace#1{\mathop{\vtop{\m@th\ialign{##\crcr
$\hfil\displaystyle{#1}\hfil$\crcr
\noalign{\kern3\p@\nointerlineskip}%
\upbracefill\crcr\noalign{\kern3\p@}}}}\limits}
This allows the syntax
\underbrace{...}_{...}
but has the consequence you can see in your example.
The spacing would be the same as with
\sin+x
Solution: add braces, which make the object into an ordinary atom.
\documentclass{article}
\begin{document}
\[ \dot{W}_{cv} + \dot{m} \]
\[ {\underbrace{\dot{W}_{cv}}_{=0}} + \dot{m} \]
\[ {\underbrace{\dot{W}}_{=0}} + \dot{m} \]
\end{document}
The proper syntax for LaTeX would be
\Underbrace{label}{formula}
and you can obtain it by saying
\newcommand{\Underbrace}[2]{{\underbrace{#2}_{#1}}}
Best Answer
In plain they are defined as:
Assuming LaTeX doesn't touch on these, my money's on the change of
\baselineskipin the definition of\vdotsfor your problem.As for a solution, I would suggest in this day and age of Unicode, to use a character devoted for that, namely ⋮ (22EE).