Editing Functions In Memory; Drawing A Graph - Casio FX-7400G PLUS User Manual

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Chapter 4
Graphing
k k k k k Editing Functions in Memory
u u u u u To edit a function in memory
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
2. Press 2 (DEL).
3. Press 1 (YES) to delete the function or 4 (NO) to abort the procedure without
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.
54
Example
To change the expression in memory area Y1 from
y
to
= 2
e
(Displays cursor.)
eeeed
(Changes contents.)
w
(Stores new graph function.)
cursor and move the highlighting to the area that contains the function you want
to delete.
deleting anything.
• Graphs for which there is no draw/non-draw status specification are not drawn.
Example
To select the following functions for drawing:
y
Y1 :
= 2
t
x
X
2:
= 3 sin T
t
y
Y
2 :
= 3 cos T
x
– 3
2
x
– 5
2
y
x
= 2
– 5
2
1
2
3
4

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