epicycloid
plural of androecium
Synonym of catastrophic interference
Alternative form of bolty
(geometry) The locus of a point on the circumference of a circle that rolls without slipping on the circumference of another circle.
数学者は、ある円が別の円の外周に沿って滑らずに転がるときの円周上の点の軌跡をスケッチして、単純な転がり運動がどのように複雑な曲線を生み出すかを示した。
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