public void ICollection()
{
var a = new ComplexDoubleVector(new Complex[4] {
0, 1, 2, 3
});
var b = new Complex[5];
Assert.AreEqual(a.Count, a.Length);
a.CopyTo(b, 1);
Assert.AreEqual(b[0], (Complex)0);
Assert.AreEqual(b[1], (Complex)0);
Assert.AreEqual(b[2], (Complex)1);
Assert.AreEqual(b[3], (Complex)2);
Assert.AreEqual(b[4], (Complex)3);
}