[pstricks] psmatrix changing node style problem

[caapv 208]

--- Herbert Voss <Herbert.Voss at fu-berlin.de> wrote:

> Vincent McGarry schrieb:
> > I am having difficulty changing the node style at
> the beginning of a  
> > row of a matrix. See the following:
> 
> 
> > & \eu^u & u=2.3025\dots\\
> >   [mnode=circle] 10 & \pi^v & v=2.0114\dots\\ 
> <--- changing this  
> > node FAILS
> 
> 
>
http://tug.org/PSTricks/main.cgi?file=pstricks.bug&verb=1
> 
> first in the list.

Notice amsmath (amsgen.sty) provides \new at ifnextchar so
that

\documentclass[11pt]{article}
\pagestyle{empty}
\usepackage{amsmath}
\begin{document}
$
\begin{matrix}
[a]\\
[b]
\end{matrix}
$
\end{document}

compiles.

> Herbert

Regards,
SMiyata

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