# Py5Vector.cross()¶

Calculate the vector cross product of two 3D vectors.

## Examples¶ ``` 1 2 3 4 5 6 7 8 9 10 11 12 13``` ```def setup(): py5.size(100, 100, py5.P3D) py5.background(128) py5.translate(30, 70) py5.scale(50) py5.stroke_weight(0.1) v1 = py5.Py5Vector(0.7, -0.15, -0.7) v2 = py5.Py5Vector(0.7, 0.15, 0.7) py5.line(0, 0, 0, v1.x, v1.y, v1.z) py5.line(0, 0, 0, v2.x, v2.y, v2.z) py5.stroke(255, 0, 0) v3 = v1.cross(v2) py5.line(0, 0, 0, v3.x, v3.y, v3.z) ```

## Description¶

Calculate the vector cross product of two 3D vectors. If one of the vectors is a 2D vector, its z-value is assumed to be zero and the vector cross product is calculated normally. If both vectors are 2D vectors, the returned value will be the wedge product.

## Syntax¶

```cross(other: Union[Py5Vector, np.ndarray]) -> Union[float, Py5Vector, np.ndarray[np.floating]]
```

## Parameters¶

• other: Union[Py5Vector, np.ndarray] - 2D or 3D vector to calculate the cross product with

Updated on February 26, 2022 13:22:44pm UTC