V2EX coordinate rotation

Coordinate Rotation

定义(Definition)

“Coordinate rotation” 指坐标旋转/坐标系旋转:通过旋转坐标轴(或等价地旋转点/向量)来改变坐标表示方式,常用于几何、线性代数、物理与计算机图形学中。

发音(Pronunciation, IPA)

/kordnt roten/

例句(Examples)

Rotate the axes by 90 degrees using coordinate rotation.
用坐标旋转把坐标轴旋转 90 度。

After a coordinate rotation, the ellipse aligns with the new axes, which simplifies the equation and makes the cross-term disappear.
经过一次坐标旋转后,椭圆与新坐标轴对齐,从而简化方程并使交叉项消失。

词源(Etymology)

coordinate 源自拉丁语 co-(共同) + ordinare(安排、使有序),引申为“坐标/坐标的”;rotation 源自拉丁语 rotare(旋转),与 rota(轮子)同源。合起来即“对坐标(系)进行旋转”。

相关词(Related Words)

文学与经典作品中的用例(Literary Works)

  • Introduction to Linear Algebra(Gilbert Strang):在矩阵与正交变换章节中讨论旋转(含坐标旋转思想)。
  • Classical Mechanics(Herbert Goldstein):在坐标变换与参考系处理里频繁使用坐标旋转来简化问题。
  • Computer Graphics: Principles and Practice:在二维/三维变换(旋转矩阵、坐标系变换)中使用坐标旋转概念。
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