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[UNDELETED] [REOPENED] [CLOSED] I would suggest to undelete/reopen https://mathoverflow.net/q/328312, as a courtesy and sign of respect, and then hopefully one of our experts can answer it. I know, I was one of those who cast a vote to delete, when I was still under the impression that this was posted under a false name. Somehow the software allows to ...

The question Why do some mathematicians believe that the notation $(x_n)_{n\in \omega}$ is better than $(x_n)_{n=0}^\infty$ or $(x_n)_{n\in \mathbb N}$ seems to be asked in good faith, even if the tone may have annoyed people who use the notation. It was closed as "primarily opinion-based" but I think that actual practitioners, especially those who work with ...

Re-opened and then re-closed I don't think it is obvious how to find the shortest chord that bisects the area of a convex polygon. That is the question posed in this now closed post: Shortest bisecting line. Perhaps one would have to use the algorithm below, modified to spin the direction through $180^\circ$. Shermer, Thomas C. "A linear algorithm for ...