public void Absolute()
{
Matrix44F absoluteM = new Matrix44F(-1, -2, -3, -4,
-5, -6, -7, -8,
-9, -10, -11, -12,
-13, -14, -15, -16);
absoluteM.Absolute();
Assert.AreEqual(1, absoluteM.M00);
Assert.AreEqual(2, absoluteM.M01);
Assert.AreEqual(3, absoluteM.M02);
Assert.AreEqual(4, absoluteM.M03);
Assert.AreEqual(5, absoluteM.M10);
Assert.AreEqual(6, absoluteM.M11);
Assert.AreEqual(7, absoluteM.M12);
Assert.AreEqual(8, absoluteM.M13);
Assert.AreEqual(9, absoluteM.M20);
Assert.AreEqual(10, absoluteM.M21);
Assert.AreEqual(11, absoluteM.M22);
Assert.AreEqual(12, absoluteM.M23);
Assert.AreEqual(13, absoluteM.M30);
Assert.AreEqual(14, absoluteM.M31);
Assert.AreEqual(15, absoluteM.M32);
Assert.AreEqual(16, absoluteM.M33);
absoluteM = new Matrix44F(1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16);
absoluteM.Absolute();
Assert.AreEqual(1, absoluteM.M00);
Assert.AreEqual(2, absoluteM.M01);
Assert.AreEqual(3, absoluteM.M02);
Assert.AreEqual(4, absoluteM.M03);
Assert.AreEqual(5, absoluteM.M10);
Assert.AreEqual(6, absoluteM.M11);
Assert.AreEqual(7, absoluteM.M12);
Assert.AreEqual(8, absoluteM.M13);
Assert.AreEqual(9, absoluteM.M20);
Assert.AreEqual(10, absoluteM.M21);
Assert.AreEqual(11, absoluteM.M22);
Assert.AreEqual(12, absoluteM.M23);
Assert.AreEqual(13, absoluteM.M30);
Assert.AreEqual(14, absoluteM.M31);
Assert.AreEqual(15, absoluteM.M32);
Assert.AreEqual(16, absoluteM.M33);
}