public void SumTest2()
{
int[,] value =
{
{ 2, 5, -1 },
{ 5, 0, 2 },
};
int[] expected;
int[] actual;
expected = new int[] { 7, 5, 1 };
actual = Matrix.Sum(value, 0);
Assert.IsTrue(expected.IsEqual(actual));
actual = Matrix.Sum(value, 0);
Assert.IsTrue(expected.IsEqual(actual));
expected = new int[] { 6, 7 };
actual = Matrix.Sum(value, 1);
Assert.IsTrue(expected.IsEqual(actual));
}