2019-09-02|Sunatori's Quadrants in Grapher.app

Here is a strange anomaly that is reproducibly observed in Grapher.app on macOS. Instead of displaying qualitatively incorrect graph, it should say something like NAN (not a number), please.
- y = 1 / (x ^ 2.0)
  -> quadrant I and quadrant II
- y = 1 / (x ^ 2.01)
  -> quadrant I only
- y = 1 / (x ^ 2.000000000000001)
  -> quadrant I only
- y = 1 / (x ^ 2.0000000000000001)
  -> quadrant I and quadrant II
I wonder how many scientific papers have been published inadvertently using such tainted computational algorithm...

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"Sunatori, Go Simon" <GS.Sunatori@HyperInfo.CA>

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