public void Matrix4DTestIsIdentity()
{
Matrix4d m = new Matrix4d(
new double[] { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 });
Matrix4d m2 = new Matrix4d(
new double[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 });
Assert.IsTrue(m.IsIdentity());
Assert.IsFalse(m2.IsIdentity());
}