HP 9g-Grafenberechner - Handbuch (Seite 71)

G-71
RUN
(1) 2 X 2 – 7 X + 5 = 0 X
1
= 2.5 , X
2
= 1
[ ]
2 [ ] [ ( – ) ] ] 7 [ ] 5
[ ]
(2) 25 X 2 – 70 X + 49 = 0 X = 1.4
[ ]
25 [ ] [ ( – ) ] 70[ ]
49
[ ]
(3) X 2 + 2 X + 5 = 0 X
1
= – 1 + 2 i , X
2
= – 1 – 2 i
[ ]