Casio fx-7400G PLUS, Руководство пользователя, Страница: 70 / 218

56
Chapter 4 Graphing
[
1
(Y >) ......... Y >
f
(
x
) inequality
2
(Y <) ......... Y <
f
(
x
) inequality
3
(Y
≥
) ......... Y
>
f
(
x
) inequality
4
(Y
≤
) ......... Y
<
f
(
x
) inequality
Press
[
to return to the previous menu.
u u
u u u
To graph using rectangular coordinates (Y =)
You can graph functions that can be expressed in the format
y
=
f
(
x
).
Example To graph
y
= 2
x
2 + 3
x
– 4
Use the following View Window parameters.
Xmin = –5 Ymin = –10
Xmax = 5 Ymax = 10
Xscl = 2 Yscl = 5
1. In the set-up screen, specify the appropriate graph type for F-Type.
!Z1
(Y =)
Q
2. Input the rectangular coordinate (Y =) expression.
A!4
(SKTCH)
1
(Cls)
w
2
(GRPH)
1
(Y =)
c T
x
+d T -e
3. Press
w
to draw the graph.
w
• You can draw graphs of the following built-in scientific functions.
• sin
x
• cos
x
• tan
x
• sin
–1
x
• cos
–1
x
• tan
–1
x
• •
x
2
• log
x
• ln
x
• 10
x
•
e
x
•
x
–1
•
3
View Window settings are made automatically for built-in graphs.
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