H-Methode
limhβ0hf(x0β+h)βf(x0β)βx0β=2limhβ0hf(2+h)βf(2)βf(x)=2x2β3xlimhβ0h2(2+h)2β3(2+h)β(2β
22β3β
2)βlimhβ0h2(4+4h+h2)β(6+3h)β(8β6)βlimhβ0h8+8h+2h2β6β3hβ2βlimhβ0h8+5h+2h2β8βlimhβ0h5h+2h2β=hh(5+2h)βlimhβ05+2h=5