Matrix.M21 屬性


取得或設定這個 Matrix 結構之第二列第一行的值。Gets or sets the value of the second row and first column of this Matrix structure.

 property double M21 { double get(); void set(double value); };
public double M21 { get; set; }
member this.M21 : double with get, set
Public Property M21 As Double


這個 Matrix 之第二列第一行的值。The value of the second row and first column of this Matrix. 預設值為 0。The default value is 0.


下列範例示範如何將兩個Matrix結構相乘, 以及如何Matrix在宣告並宣告結構之後, 將值指派給。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;



下表顯示的版面Matrix配置。The following table shows the layout of a Matrix.

M11 M12 00
M21 M22 00
OffsetX OffsetY 11