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Post by Admin on Oct 31, 2018 16:34:15 GMT
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Post by Admin on Nov 1, 2018 7:37:19 GMT
Gary pointed out a typo on page 2 of my answer, where I had forgotten to square $R$ in the definition of $c$.
Later I noticed that I had also forgotten a factor of $2$ in line 1 of page 2 and also, in two places, in the equations for the lemniscates in the section of my answer entitled Lemniscates in figure 3.
I have corrected these and republished.
Vasco/Admin
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