quadrature background

quadrature

/-t͡ʃə(ɹ)/

Illustration quadrature - Image 1

noun

求积, 平方, 正交.

The process of making something square; squaring.

Examples :

"The quadrature of the rectangular garden involved adding a strip of land to one side so it became a perfect square. "

为了把长方形花园变成一个完美的正方形，我们对它进行求积，也就是在花园的一侧增加了一块土地。

math process area figure

Illustration quadrature - Image 1

noun

求积，求面积。

The act or process of constructing a square that has the same area as a given plane figure, or of computing that area.

Examples :

"The old puzzle involved the quadrature of a circle, trying to create a square with exactly the same area. "

这个古老的谜题涉及到圆的求积，也就是试图创建一个面积完全相等的正方形。

math area figure

Illustration quadrature - Image 1

noun

数值积分，求积。

(numerical analysis) The calculation of a definite integral by numerical means.

Examples :

"The math student used quadrature to estimate the area under a curve, since finding the exact solution was too difficult. "

由于很难找到精确解，那个数学专业的学生使用数值积分 (shù zhí jī fēn) 来估算曲线下的面积。

math computing number science technical

Illustration quadrature - Image 1

noun

求积, 积分法.

The act or process of solving an indefinite integral by symbolic means.

Examples :

"Example Sentence: "The student struggled with the quadrature of the function, as they hadn't fully grasped the integration techniques." "

由于学生还没有完全掌握积分技巧，他们在对这个函数进行求积时遇到了困难。(Yóuyú xuésheng hái méiyǒu wánquán zhǎngwò jīfēn jìqiǎo, tāmen zài duì zhège hánshù jìnxíng qiújī shí yùdào le kùnnan.)

Illustration quadrature - Image 1

noun

正交，方照。

A situation in which the directions of two celestial bodies (or a celestial body and the Sun) form a right-angle from the perspective of the observer.

Examples :

"When the Moon is in quadrature, it appears in the sky as a half-moon."

当月亮处于正交位置时，从地球上看，它会呈现半月形状。

astronomy space math

Illustration quadrature - Image 1

noun

正交, 相位差九十度。

The condition in which the phase angle between two alternating quantities is 90°.

Examples :

"In the AC power system, the voltage and current are said to be in quadrature when the current reaches its maximum value one-quarter of a cycle after the voltage does. "

在交流电力系统中，如果电流在电压达到最大值之后晚四分之一周期才达到最大值，就说电压和电流处于正交状态，也就是它们的相位差为九十度。

physics math electronics signal technical condition frequency degree

Illustration quadrature - Image 1

noun

板上绘画，木板油画。

A painting painted on a wooden panel.

Examples :

"The museum displayed a rare quadrature, showcasing the artist's early technique on a small wooden panel. "

博物馆展出了一幅罕见的板上绘画，展现了艺术家早期在小木板上绘画的技法。