# Getting the length of a vector

Is there a way to get the length of a vector according to the form: For a vector (v_1,v_2,v_3, ... , v_n), get the result sqrt(v_1^2 + v_2^2 + v_3^2 + ... + v_n^2).

Getting the length of a vector

add a comment

1

You can use the `norm`

method:

```
sage: v = vector((3,4))
sage: v
(3, 4)
sage: v.norm()
5
```

Asked: **
2017-11-26 15:52:01 -0500
**

Seen: **254 times**

Last updated: **Nov 26 '17**

Using Psycopg2 and other libraries in sage

from sage.all import * results in libcsage.so "cannot open shared object file" error

Using from Python (breaking the monolith)

Sage nb code won't run now: vector.transpose() throws error.

TypeError: 'int' object is not iterable

How can you stop warnings from printing?

v4.5.2 Upgrade Breaks Notebook, "got EOF subprocess must have crashed..."

Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.