Carlyle circle

名词 n.
中文释义

英文释义

名词 n.
  1. A certain circle in a coordinate plane associated with a quadratic equation, having the property that the solutions of the equation are the horizontal coordinates of the intersections of the circle with the horizontal axis.
    — Carlyle circles have been used to develop ruler-and-compass constructions of regular polygons.

词形变化

Carlyle circles plural

词源

The idea of using such a circle to solve a quadratic equation is attributed to Thomas Carlyle (1795–1881).
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