The concentric knobs are actually two knobs, each set in a small maze of function switches.
2.
At an inflection point, a function switches from being a convex function to being a concave function or vice versa.
3.
*PM : no continuous function switches the rational and the irrational numbers, id = 6692-- WP guess : no continuous function switches the rational and the irrational numbers-- Status:
4.
*PM : no continuous function switches the rational and the irrational numbers, id = 6692-- WP guess : no continuous function switches the rational and the irrational numbers-- Status:
5.
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