Only in logocyclic curve, a crunodal circular cubic, whose equation is (x2 + y2) (2a − x) = a2x.
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1858 J. Booth in Proc. Royal Soc.9 257 A new curve, which I have called the Logocyclic Curve, from the similarity of many of its properties to those of the circle, and from its use in representing numbers and their logarithms.