Normalizing a vector: normalize unitV

### 6.42.2 Normalizing a vector: normalize unitV

The normalize command finds the unit vector in the direction of a given vector.
unitV is a synonym for normalize.

- normalize takes one argument:
  V, a vector (list).
- normalize(V) normalizes this vector for the l2 norm (the square root of the sum of the squares of its coordinates).

Example.
Input:

normalize([3,4,5])

Output:

⎡ ⎢ ⎢ ⎢ ⎢ ⎣ |
3
5 | √ |
2
| , |
4
5 | √ |
2
| , |
5
5 | √ |
2
| ⎤ ⎥ ⎥ ⎥ ⎥ ⎦