public void ScalePrepend() { var m = Matrix.Identity; m.ScalePrepend (5, 6); CheckMatrix (new Matrix (5, 0, 0, 6, 0, 0), m); m = new Matrix (1, 2, 2, 1, 3, 3); m.ScalePrepend (5, 5); CheckMatrix (new Matrix (5, 10, 10, 5, 3, 3), m); }