Casio fx-7400G, Руководство пользователя

Страница: 57 / 186

54
Graphing Chapter 4
k k
k k
k Editing Functions in Memory
u u u u u
To edit a function in memory
Example To change the expression in memory area Y1 from
y
= 2
x
2 – 5
to
y
= 2
x
2 – 3
e
(Displays cursor.)
eeee d
(Changes contents.)
w
(Stores new graph function.)
u u u u u
To delete a function
1. While the Graph Function Menu is on the display, press f or c to display the
cursor and move the highlighting to the area that contains the function you want
to delete.
2. Press 2 (DEL).
3. Press
1
(YES) to delete the function for
4
(NO) to abort the procedure with-
out deleting anything.
k k k k k Drawing a Graph
Before actually drawing a graph, you should first make the draw/non-draw status.
u u u u u
To specify the draw/non-draw status of a graph
You can specify which functions out of those stored in memory should be used for a
draw operation.
• Graphs for which there is no draw/non-draw status specification are not drawn.
Example To select the following functions for drawing:
Y1 :
y
= 2
x 2
– 5
X
t
2:
x
= 3 sin T
Y
t
2 :
y
= 3 cos T
1 2 3 4