[pstricks] multido

[Richard K. Oliver]

Under Windows XP and MiKTeX, the code below produces the error message:

! Bad \multido variable declaration.
\multido at badvar ...do \space variable declaration}

l.7 ...psdots[linecolor=red,dotsize=10pt](\i,\j)}}

What does this mean and how do I fix the code?

\documentclass{article}
\usepackage{pst-all}
\begin{document}
\begin{figure}
\begin{pspicture}(-1,-1)(10,10)
\psgrid[subgriddiv=1,griddots=0,gridlabels=7pt]
\multido{\i=0+1}{11}{\multido{\j=0+1}{11}{\psdots[linecolor=red,dotsize=10pt](\i,\j)}}
\end{pspicture}
\end{figure}
\end{document}

Sincerely,
R. K. Oliver
rko15 at att.net
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