quadrature n. 1.【数学】求积分,求面积。 2.【天文学】矩;(月的)上[下]弦;方照。 3.【物理学】正交;转象差;九十度相位差。 the quadrature (of the circle) 圆积法[作与圆等积的正方形]。 phase quadrature 【物理学】转象相差,九十度相位差。
Among such curves are the quadratrix invented by hippias . 在这样的曲线中有希皮阿斯发明的割圆曲线。
百科解释
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.