Length Of Vectors

## Description

The euclidian length of a vector, or the norm of a vector, is

(1)\begin{align} ||\mathbf x|| = \left( \sum_{i=1}^n x_i^2 \right)^2 \end{align}

The Sage cell below calculates the length of the vector $a = [ 1, 2, 3 ]$.

## Sage Cell

#### Code

```
a=vector([ 1, 2, 3 ])
a.norm()
```

## Options

None

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Date: 06 Nov 2018 16:28

Submitted by: James A Phillips