Published online by Cambridge University Press: 03 November 2016
It is proposed to discuss in this paper some properties of the general Frégier-point and point out its connections with well known conics like the Apollonian hyperbola and the nine-point conic of a quadrangle. Incidentally, we discover a pedal conic of a quadrangle which has very intimate relations with the nine-point conic.
I am indebted to Mr. V Ramaswami Aiyar for the substance of the theorems marked with an asterisk(∗). For the proof, however, I am entirely responsible.
Page 194 of note * This theorem is not exactly new. The substance of it can be traced to J. Wolstenholme’s Mathematical Problems, p.211, Q. 1267.