Ford circle

名词 n.

英文释义

名词 n.
  1. Any one of a class of circles with centre at (p/q, 1/(2q²)) and radius 1/(2q²), where p/q is an irreducible fraction (i.e., p and q are coprime integers).
    — Every Ford circle is tangent to the horizontal axis y#61;0, and any two Ford circles are either disjoint or meet at a tangent.

词形变化

Ford circles plural

词源

Named after American mathematician Lester Randolph Ford, Sr., who wrote about them in 1938.
0 次浏览 数据来源: Wiktionary