## 6.5.1 Dot and cross products

The dot product of two vectors can be found simply by multiplying the two vectors together:

`pyxplot> a = vector(1,4)`
`pyxplot> b = vector(2,3)`
`pyxplot> print a*b`
`14`

The cross product of two vectors, which is only defined for pairs of three-element vectors, can be found by passing the two vectors to the `cross(a,b)` function:

`pyxplot> a = vector(1,4,1)`
`pyxplot> b = vector(2,3,2)`
`pyxplot> print cross(a,b)`
`vector(5, 0, -5)`