9.1. 导言:矢量
章节大纲
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Physicists, video game designers, meteorologists, and air traffic controllers all use vectors. Algebraically, vectors provide a whole new way to think about points, lines, and angles. Most importantly, they give you an opportunity to connect your knowledge of trigonometry to real-world applications. Typical quantities measured by vectors include velocity, force, and acceleration. Vector quantities include a magnitude like other measurements in units, such as those in kilograms and miles, but also include direction.
::物理学家、 视频游戏设计师、 气象学家和空中交通控制器都使用矢量。 代数论, 矢量提供了一种全新的思考点、 线和角度的方法。 最重要的是, 它们给了您机会将三角测量知识与现实世界应用联系起来。 以矢量测量的典型数量包括速度、 力和加速度。 矢量包括一个像其它单位测量的数值, 如公斤和里程等, 但也包括方向 。