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\begin{block}{In what order would you eliminate the vars of a system whose matrix is}
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\item a path \includegraphics[height=0.03\textwidth]{figures/path.pdf}
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\item a rectangular mesh \includegraphics[height=0.15\textwidth]{figures/rectmesh.pdf}
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\begin{block}{Ideas?}
We talked about minimum degree, minimum fill-in metrics. What about the minimum operation count metric?
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