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
2.5 Graphing a numerical derivative
Although the calculator can only evaluate a numerical derivative at a point,
it will graph the gradient function for all values of x.
Example 33
If
y
x
x
=
+3
,
draw the graph of
d
d
y
x
.
Press
MENU
. You will see the dialog box as shown on the right.
Choose 5: GRAPH and press
EXE
.
Press
OPTN
F2
CALC.
Choose
F1
d
dx
to choose the derivative template.
In the template enter x, the function
x
x +3
and the value x.
Press
EXE
.
Press
SHIF T
F3
V-Window and choose
F3
STD for the default axes
which are −10 ≤ x ≤ 10 and −10 ≤ y ≤ 10.
Press
EXE
and
F6
DRAW.
The GDC displays the graph of the numerical derivative
function of
y
x
x
=
+3
.
32

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