public void Subtraction() { Matrix22F m1 = new Matrix22F(columnMajor, MatrixOrder.ColumnMajor); Matrix22F m2 = Matrix22F.One; Matrix22F result = Matrix22F.Subtract(m1, m2); for (int i = 0; i < 4; i++) { Assert.AreEqual(rowMajor[i] - 1.0f, result[i]); } }