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freeCodeCamp/guide/chinese/mathematics/adding-and-subtracting-vectors/index.md
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---
title: Adding and Subtracting Vectors
localeTitle: 添加和减去矢量
---
## 添加和减去矢量
在线性代数中两个向量A和B的和A + B等于A和B的相应分量之和。例如如果向量A是`{1, 3, 4}` 则向量B是`{2, 5, 9}` 和A + B是`{1+2, 3+5, 4+9} = {3, 8, 13}`
![矢量加法的可视化。](http://mathworld.wolfram.com/images/eps-gif/ParallelogramLaw_1000.gif) 1
类似地两个向量之间的差异AB再次A和B等于A和B的相应分量之间的差异。与上述向量的差异是`{1-2, 3-5, 4-9} = {-1, -2, -5}`
#### 更多信息:
[Wolfram Mathworld上的矢量加法](http://mathworld.wolfram.com/VectorAddition.html) [维基百科上的矢量加法和减法](https://en.wikipedia.org/wiki/Euclidean_vector#Addition_and_subtraction)
### 资料来源:
1. [Wolfram Mathworld上的矢量加法](http://mathworld.wolfram.com/VectorAddition.html)