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
Press
OPTN
F2
GLINK.
When you scroll through the table the cross moves along the curve.
The minimum value shown in the table is 2 when x = 1.
Look more closely at the values of the function around x = 1.
Press
SHIF T
F3
V-Window.
Choose values −0.9 ≤ x ≤ 1.1 and 1.99 ≤ y ≤ 2.01 and press
EXE
.
Change the settings in the table: Press
F1
F5
SET.
Set Start to 0.9
End to 1.1
 to 0.01
Press
EXE
F6
to view the graph and the table.
Press
F5
G·CON to display the graph alongside the table.
Press
OPTN
F2
GLINK and scroll through the table.
The table shows that the function has larger values at points around (1, 2).
We can conclude that this is a local minimum on the curve.
Method  – Using the minimum function
Press
F5
G-Solv
F3
MIN.
The calculator displays the minimum point on the curve at (1, 2).
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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