# Adding vectors in space

- Author:
- Przemysław Kajetanowicz

- Topic:
- Vectors

The components of a vector

**PQ**are the differences of the corresponding coordinates of*Q*and*P*, respectively. The components of**PQ**can be also considered as the components of the difference**OQ**-**OP**of the position vectors of*P*and*Q*, respectively. This kind of dual interpretation comes especially handy when vector-valued functions are used to describe curves in space.