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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??

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up vote 3 down vote accepted

In plain they are defined as:

\def\ldots{\mathinner{\ldotp\ldotp\ldotp}} 
\def\cdots{\mathinner{\cdotp\cdotp\cdotp}} 
\def\vdots{\vbox{\baselineskip=4pt \lineskiplimit=0pt 
\kern6pt \hbox{.}\hbox{.}\hbox{.}}} 
\def\ddots{\mathinner{\mkern1mu\raise7pt\vbox{\kern7pt\hbox{.}}\mkern2mu 
\raise4pt\hbox{.}\mkern2mu\raise1pt\hbox{.}\mkern1mu}}

Assuming LaTeX doesn't touch on these, my money's on the change of \baselineskip in the definition of \vdots for 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).

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Thanks, this helped completely. I ended up redefining \vdots but with a \baselineskip of 10pt. It worked like a charm. –  Kristen Dec 23 '10 at 17:51
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