public void Simple()
{
var vector1 = new VectorN(2);
vector1[0] = 1;
vector1[1] = 2;
var vector2 = new VectorN(2);
vector2[0] = 3;
vector2[1] = 4;
vector1.Swap((IVector <double>)vector2);
Assert.AreEqual(3, vector1[0]);
Assert.AreEqual(4, vector1[1]);
Assert.AreEqual(1, vector2[0]);
Assert.AreEqual(2, vector2[1]);
}