V2EX y-value

Y-value

释义 Definition

y-value:在二维坐标系或函数关系中,某个点对应的 y 坐标值,通常表示随 x 变化的输出值/因变量。(在不同语境下也可泛指图表中纵向测量到的数值。)

发音 Pronunciation

/wa vlju/

例句 Examples

The y-value is 5 when x equals 2.
当 x 等于 2 时,y 值是 5。

By comparing the y-values across the graph, we can see the dependent variable increases rapidly at first and then levels off.
通过比较整张图上的 y 值,我们可以看出因变量起初快速上升,随后趋于平缓。

词源 Etymology

y-value 由字母 y(常用来表示直角坐标系的纵轴或函数的输出)与 value(数值)组合而成,是数学、统计与科学绘图中的常用表达;与之对应的说法是 x-value(横坐标值)。

相关词 Related Words

文学与作品 Literary Works

  • James Stewart, _Calculus_(《微积分》):在函数图像与坐标几何的讲解中常出现 y-value / y-values 的表述。
  • Ron Larson 等, _Algebra and Trigonometry_(《代数与三角学》):用于描述点的坐标、函数表与图像读数。
  • Richard P. Feynman, _The Feynman Lectures on Physics_(《费曼物理学讲义》):在用图像解释物理量关系时,会使用类似“x-value / y-value”的图表语言。
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