# Matrix.M11Matrix.M11Matrix.M11Matrix.M11 Property

## Definition

Gets or sets the value of the first row and first column of this Matrix structure.

``````public:
property double M11 { double get(); void set(double value); };``````
``public double M11 { get; set; }``
``member this.M11 : double with get, set``
``Public Property M11 As Double``

#### Property Value

The value of the first row and first column of this Matrix. The default value is 1.

## Examples

The following example shows how to multiply two Matrix structures and how to assign values to a Matrix when it is declared, and after the structure is declared.

``````private void multiplicationExample()
{

Matrix matrix1 = new Matrix(5, 10, 15, 20, 25, 30);
Matrix matrix2 = new Matrix(2, 4, 6, 8, 10, 12);

// matrixResult is equal to (70,100,150,220,240,352)
Matrix matrixResult = Matrix.Multiply(matrix1, matrix2);

// matrixResult2 is also
// equal to (70,100,150,220,240,352)
Matrix matrixResult2 = matrix1 * matrix2;

}
``````