Casio fx-9860GII User Manual

Using a graphic display calculator
© Oxford University Press 2012: this may be reproduced for class use solely for the purchaser’s institute
Casio fx-9860GII
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
i
27 4 2
1
2
()( )++ −ii
ii (2 + 3i ) ⋅ (3 − 4i )
iii
34+ i
iv
1
3
−
+
i
i
v (1 − i )
3
Press
MENU
. You will see the dialog box as shown on the right.
Choose 1: RUN·MAT and press
EXE
.
Complex calculations are entered the same way as you
would enter a real expression.
To enter the imaginary number symbol i press
SHIF T
i.
Enter the expressions and then press
EXE
.
The results are as shown.
15

Casio fx-9860GII Specifications

General

Type	Graphing
Form factor	Desktop
Control type	Buttons
Product color	Silver
Housing material	Plastic
Built-in capability	Yes
Digits	- digits
Display type	LCD
Second display	No
Display tilting	-
Display resolution	64 x 128 pixels
Display character size	8 x 21 mm
Display number of lines	8 lines
Display number of characters	21
Flash memory	1.5 MB
RAM capacity	0.064 MB
Storage media type	Flash
Battery type	AAA
Power source	Battery
Number of batteries supported	4