public void RotateAtPrepend() { var m = new Matrix (1, 2, 3, 4, 5, 6); m.RotateAtPrepend (33, 5, 5); CheckMatrix (new Matrix (2.47258767299051, 3.85589727595096, 1.97137266882125, 2.26540420175164, 2.78019829094125, 5.39349261148701), m); }