アポロニウスの円
1. Circles of ApolloniusThe circle of Apollonius is any of several types of circles associated with Apollonius of Perga, a renowned Greek geometer. Most of these circles are found in planar Euclidean geometry, but analogs have been defined on other surfaces; for example, counterparts on the surface of a sphere can be defined through stereographic projection.
Read “Circles of Apollonius” on English Wikipedia
Read “アポロニウスの円” on Japanese Wikipedia
Read “Circles of Apollonius” on DBpedia
Read “Circles of Apollonius” on English Wikipedia
Read “アポロニウスの円” on Japanese Wikipedia
Read “Circles of Apollonius” on DBpedia
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