# Matrix.Append(Matrix) Method

## Definition

Important

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```
public:
void Append(System::Windows::Media::Matrix matrix);
```

`public void Append (System.Windows.Media.Matrix matrix);`

`member this.Append : System.Windows.Media.Matrix -> unit`

`Public Sub Append (matrix As Matrix)`

#### Parameters

## Examples

The following example shows how to append a Matrix structure to another Matrix structure.

```
private Matrix rotateAboutPointExample()
{
// Creating a Matrix structure.
Matrix myMatrix = new Matrix(5, 10, 15, 20, 25, 30);
// Rotate the matrix 90 degrees about the point (100,100).
// myMatrix becomes equal to (-10, 4, -20, 15, 170, 25).
myMatrix.RotateAt(90, 100, 100);
return myMatrix;
}
```

## Remarks

This operation is the same as multiplying this Matrix structure by the parameter `matrix`

. Matrix multiplication is not commutative, though, so this operation is not the same as multiplying the parameter `matrix`

by this Matrix structure; that is, (this * `matrix`

) is not the same as (`matrix`

* this).