## Description

Here is a Sage cell that adds the vectors $a$ and $b$:

(1)
\begin{align} a=<1, 2, 3>\\ b=<4, 5, 6> \end{align}

## Sage Cell

Here is a Sage cell that subtracts the vectors $a$ and $b$:

#### Code

a = vector([1, 2, 3])
b = vector([4, 5, 6])
a + b

a = vector([1, 2, 3])
b = vector([4, 5, 6])
a - b


none

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## Related Cells

Any related cells go here. Provide a link to the page containing the information about the cell.