# Vector.CrossProduct(Vector, Vector) Method

## Definition

Important

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Calculates the cross product of two vectors.

```
public:
static double CrossProduct(System::Windows::Vector vector1, System::Windows::Vector vector2);
```

`public static double CrossProduct (System.Windows.Vector vector1, System.Windows.Vector vector2);`

`static member CrossProduct : System.Windows.Vector * System.Windows.Vector -> double`

`Public Shared Function CrossProduct (vector1 As Vector, vector2 As Vector) As Double`

#### Parameters

- vector1
- Vector

The first vector to evaluate.

- vector2
- Vector

The second vector to evaluate.

#### Returns

The cross product of `vector1`

and `vector2`

. The following formula is used to calculate the cross product:

`(Vector1.X * Vector2.Y) - (Vector1.Y * Vector2.X)`

## Examples

The following example shows how to use this method to calculate the cross product of two Vector structures.

```
private Double crossProductExample()
{
Vector vector1 = new Vector(20, 30);
Vector vector2 = new Vector(45, 70);
Double crossProduct;
// crossProduct is equal to 50
crossProduct = Vector.CrossProduct(vector1, vector2);
return crossProduct;
}
```