V2EX angle-preserving

Angle-Preserving

释义 Definition

(形容词)保角的;保持角度不变的。常用于数学中,指一种变换在局部保持两条曲线交角不变(通常也保持方向),也常称为 conformal(共形的)。注:在某些语境下不强调长度或面积保持。

发音 Pronunciation (IPA)

/l przrv/

例句 Examples

An angle-preserving map keeps intersections looking the same.
保角映射会让交点处的角度看起来保持不变。

In complex analysis, every non-constant holomorphic function is angle-preserving wherever its derivative is nonzero.
在复分析中,任何非常值的全纯函数在其导数不为零的点附近都是保角的。

词源 Etymology

angle(角)+ preserving(保持的) 组成的复合形容词,字面意思是“保持角度的”。在数学语境中,它与“共形(conformal)”紧密相关,用来强调变换对“角度结构”的保留。

相关词 Related Words

文学与名著用例 Literary Works

  • Complex Analysis(Lars Ahlfors)讨论共形映射与“保角”性质的经典教材。
  • Visual Complex Analysis(Tristan Needham)以直观方式讲解保角变换与复变函数。
  • Complex Variables and Applications(Brown & Churchill)含大量关于保角映射/共形映射的应用与例题。
  • Conformal Mapping(Zeev Nehari)专门论述共形(保角)映射理论的著作。
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