other_phantoms - Chalkdust

Left: the cubic $y = x^3 + x^2 – x +2$ and its phantom. Right: the hyperbola $y^2 = x^2 + 1$ and its phantom.

Sean is a PhD student researching geophysical fluid dynamics at UCL. He studies coastal outflows, but so far has been unable to persuade the department to send him on a research trip to the beach.

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