The story
Named for the ancient Greek geometer and astronomer Apollonius of Perga (ca 262—ca 190 BCE).
Etymology from Wiktionary, CC BY-SA 4.0.
circle of Apollonius
Today it means: The figure (a generalised circle) definable as the locus of points P such that, for given points A, B and C, =/(\frac). Full definition →