Are these 'Cassinian Ovals' known? Has any physical meaning been found?
For the curves sketched below the foci are at $(2,1),(-2,-3)$ and squared product distances are $ (1.4^2,1.7^2 , 2^2)$. Thanks for the attention you have always given.
2026-03-27 05:36:36.1774589796
Are they Cassinian Ovals?
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