Analysis of information sources in references of the Wikipedia article "Witch of Agnesi" in English language version.
The circle "kisses" the curve accurately to second order, thus is given the name osculating circle (from the Latin word for "kissing").
[…] nata da' seni versi, che da me suole chiamarsi la Versiera in latino però Versoria […]
A useful general form for the hill shape is the so-called 'Witch of Agnesi' profile
A useful general form for the hill shape is the so-called 'Witch of Agnesi' profile
1875 B. Williamson Elem. Treat. Integral Calculus vii. 173 Find the area between the witch of Agnesi and its asymptote.
A useful general form for the hill shape is the so-called 'Witch of Agnesi' profile