hermite() { }
hermite(const value_type &p1, const value_type &p2, const value_type &t1, const value_type &t2):
P1(p1),P2(p2),T1(t1),T2(t2) { sync(); }
hermite() { }
hermite(const value_type &p1, const value_type &p2, const value_type &t1, const value_type &t2):
P1(p1),P2(p2),T1(t1),T2(t2) { sync(); }