static void Main()
{
vector3d v = new vector3d(1, 0, 42);
WriteLine($"v = {v}");
vector3d u = new vector3d(42, 42, 42);
WriteLine($"u = {u}");
WriteLine($"v + u = {v+u}");
WriteLine($"v - u = {v-u}");
WriteLine($"3*u = {3*u}");
WriteLine($"u*3 = {u*3}");
WriteLine($"u/3 = {u/3}");
WriteLine($"v * u = {v*u}");
// vector3d s = v.crossP(u);
WriteLine($"s = v x u = {v.crossP(u)}");
WriteLine($"v * s = {v.dotP(v.crossP(u))}");
WriteLine("Update values test");
WriteLine($"Old v: {v}");
v.X = 69; v.Y = 420; v.Z = 100100;
WriteLine($"New v: {v}");
WriteLine($"Dotproduct method test: v*u = {v.dotP(u)}");
}