V2EX tau

Tau

释义 Definition

tau:名词。希腊字母表的第 19 个字母(Τ, τ),在数学、物理、工程等领域常用作符号(例如表示某个参数、时间常数等)。也常见于“tau leptons(τ 轻子/陶子)”等科学语境中。
(注:在不同学科里它可代表不同量,含义取决于上下文。)

发音 Pronunciation

/ta/

例句 Examples

Tau is the 19th letter of the Greek alphabet.
τ(tau)是希腊字母表的第19个字母。

In control systems, tau often represents a time constant that affects how quickly a system responds.
在控制系统中,tau 常表示时间常数,它会影响系统响应的速度。

词源 Etymology

tau 来自希腊语 **τα (ta)**,是希腊字母名称之一;该字母的名称与形体传统可追溯到更早的闪米特字母系统(如腓尼基字母中的对应字母),后来被希腊语吸收并固定下来。

相关词 Related Words

文学作品 Literary Works

  • James Joyce, Ulysses(作品中多处涉及古典语言、字母与符号的文化联想,包含希腊字母语境的提及)
  • Thomas Pynchon, Gravity’s Rainbow(含大量科学与符号化表达,出现希腊字母作参数/符号的用法)
  • Umberto Eco, Foucault’s Pendulum(充满符号学与学术典故,包含希腊字母与符号的文化引用)
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