V2EX sinusoidal

Sinusoidal

释义 Definition

“正弦的;正弦波形的”。指形状或变化规律像正弦函数(sine function)一样平滑、周期性起伏的波形或信号(常见于物理、工程、数学中)。

发音 Pronunciation (IPA)

/sa.ns.dl/

例句 Examples

A sinusoidal wave repeats smoothly over time.
正弦波会随时间平滑地重复。

The circuit produces a sinusoidal output whose amplitude varies with the input voltage.
该电路产生正弦形输出,其振幅会随输入电压而变化。

词源 Etymology

来自 sinusoid(正弦曲线/正弦波形)+ 形容词后缀 -al(表示“……的”)。sinusoid 源于 sine(正弦)相关的数学术语体系,用于描述“像正弦函数那样的曲线或波形”。

相关词 Related Words

文学作品示例 Literary Works

  • Herman Melville, Moby-Dick(常见于带注释版或评论性文字中,用于描述“起伏如波”的形态时可能出现该词)
  • Richard Feynman, The Feynman Lectures on Physics(在讨论简谐运动、波与振动时会出现 sinusoidal 一类术语)
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