Complex Numbers; Operations With Complex Numbers - Casio fx-9860GII Instructions Manual

The calculator displays the maximum point on the curve at (1.5, −1.75).

Complex numbers

1.9 Operations with complex numbers

Example 12
Evaluate the following expressions
1
+ + −
i 2 7 ( i ) ( 4 2 i )
2
(2 + 3i ) ⋅ (3 − 4i )
ii
+ i
3 4
iii
−
1 i
iv
+
3 i
(1 − i ) 3
v
Press MENU . You will see the dialog box as shown on the right.
Choose 1: RUN·MAT and press
Complex calculations are entered the same way as you
would enter a real expression.
To enter the imaginary number symbol i press
Enter the expressions and then press
The results are as shown.
© Oxford University Press 2012: this may be reproduced for class use solely for the purchaser's institute
EXE .
i.
SHIF T
EXE .
Casio fx-9860GII
Using a graphic display calculator 15