public void ToArray2D()
{
Matrix44D m = new Matrix44D(1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12, 13,
14, 15, 16);
double[,] array = m.ToArray2D();
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
Assert.AreEqual(i * 4 + j + 1, array[i, j]);
array = (double[,])m;
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
Assert.AreEqual(i * 4 + j + 1, array[i, j]);
}
