请输入您要查询的字词:

 

单词 vector
释义

vector

A mathematical object, possibly modelling a physical phenomenon, which has magnitude and direction. Examples from applied mathematics include force, velocity, and gravitational field (see gravity), but vectors are also used in pure mathematics, particularly in geometry.

A vector may be considered as the position vector inline of a point P from an origin O or as a translation vector, a movement of space. In this way the zero vector may considered as the position vector of the origin or as no translation. The distinction between a vector and a coordinate vector may in some contexts be important, especially if more than one coordinate system is being used; in this case the same vector may have different coordinates in the two systems.

With a given coordinate system, a vector can be identified with an ordered pair (x,y) or ordered triple (x,y,z), whether considered as a position vector or a translation vector. This definition can easily be generalized to other dimensions. Addition and scalar multiplication may be defined componentwise. Other operations are important (see scalar product, vector product).

随便看

 

数学辞典收录了4151条数学词条,基本涵盖了常用数学知识及数学英语单词词组的翻译及用法,是数学学习的有利工具。

 

Copyright © 2000-2023 Newdu.com.com All Rights Reserved
更新时间:2025/7/10 9:35:51