/* this*=i where i = sqrt(-1+sqrt(-1)) */
public void Times_I()
{
// norm();
FP2 s = new FP2(b);
FP2 t = new FP2(b);
s.Times_i();
t.Add(s);
// t.norm();
b.Copy(a);
a.Copy(t);
Norm();
}
