V2EX y-axis

Y-axis

定义 Definition

y-axisy 轴/纵轴,在平面直角坐标系中通常表示竖直方向的坐标轴;其上的点一般满足 x = 0。(在三维坐标系中也可指 y 方向的坐标轴。)

例句 Examples

The y-axis shows how much the temperature changes.
y 轴显示温度变化的幅度。

When you graph the function, check where it crosses the y-axis to find the y-intercept.
画出函数图像时,检查它与 y 轴的交点以找到 y 截距。

发音 Pronunciation (IPA)

/wa k.ss/

词源 Etymology

y-axis由字母 y(表示变量或第二个坐标分量)和 axis 组成;axis 源自拉丁语 axis,意为“轴、车轴”。在笛卡尔(Cartesian)坐标系统中,y 轴与 x 轴共同构成平面定位的基础框架。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Calculus: Early Transcendentals(James Stewart):函数图像与截距、坐标轴(含 y-axis)的标准表述中频繁出现。
  • Precalculus: Mathematics for Calculus(James Stewart, Redlin, Watson):讲解直角坐标系与函数作图时常用到 y-axis。
  • Analytic Geometry(多部经典解析几何教材与著作常用术语):在讨论曲线与坐标轴关系、对称性与截距时常出现 y-axis。
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