Hiroshi Okumura,
An Analogue to Pappus
Chain theorem with Division by Zero,
Forum Geometricorum, 18 (2018) 409--412.
Abstract. Considering a line passing through
the centers of two circles in a Pappus chain, we give a theorem analogue to
Pappus chain theorem.
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Geom., 18 (2018) Table of Contents