1 | initial version |

Note that as of Sage 5.7 (see trac #13393) the `normalized`

method normalizes to unit length, `normalize`

has been deprecated, and `monic`

is the old functionality.

```
sage: v = vector([3, 2, 1])
sage: v.normalized()
(3/14*sqrt(14), 1/7*sqrt(14), 1/14*sqrt(14))
sage: v.monic()
(1, 2/3, 1/3)
```

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