quadrature n. 1.【數學】求積分,求面積。 2.【天文學】矩;(月的)上[下]弦;方照。 3.【物理學】正交;轉象差;九十度相位差。 the quadrature (of the circle) 圓積法[作與圓等積的正方形]。 phase quadrature 【物理學】轉象相差,九十度相位差。
Among such curves are the quadratrix invented by hippias . 在這樣的曲線中有希皮阿斯發明的割圓曲線。
百科解釋
In mathematics, a quadratrix (from the Latin word quadrator, squarer) is a curve having ordinates which are a measure of the area (or quadrature) of another curve. The two most famous curves of this class are those of Dinostratus and E.