V2EX squared

Squared

释义 / Definition

squared(形容词/过去式或过去分词)

  1. (数学)平方的;二次方的:某个数或量被乘以自身一次(如 \(x^2\))。
  2. 成正方形的;方形的:形状或轮廓呈方形。
    (也常见引申:已摆正、已处理妥当,如 squared away。)

发音 / Pronunciation (IPA)

/skwrd/(美式常见)
/skwed/(英式常见)

例句 / Examples

Three squared is nine.
三的平方是九。

The error tends to grow with speed squared, so small increases in speed can matter a lot.
误差往往会随着速度的平方增长,因此速度的小幅增加也可能产生很大影响。

词源 / Etymology

squared 来自 square(正方形;使成方形)+ -ed(形容词/过去分词后缀)。square 源于古法语 esquierre(木工直角尺、方正),再追溯至拉丁语与“四/方形”(quadra 等)相关的词根,因此与“方正、四边形、平方”的概念紧密相连。

相关词 / Related Words

文学作品中的用例 / Literary Works

  • **Herman Melville《白鲸》(Moby-Dick)**(常见于描写船帆、桅杆等“方正/成方形”的意象,如 squared sails 一类表达)
  • **Charles Dickens《远大前程》(Great Expectations)**(常见于人物外形描写中“肩膀方正”等表达,如 squared shoulders
  • **Joseph Conrad《黑暗之心》(Heart of Darkness)**(常见于叙述中表示“摆正姿态/下定决心”等语境,如 squared himself
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