Instead of describing faces as subsets $\varphi \subset E$, it is sometimes more convenient to choose for each face $\varphi$ an edge $e_\varphi \in \varphi$ and work with the set $\hat{F}=\{e_\varphi \, | \, \varphi \in F \}\subset E$. Knowing ⦠Continue reading Implementation issues
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