Casio fx-7400G PLUS Graphing Instrukcja Użytkownika Pobierz pdf (Strona 8)

Chapter 4 Graphing

k Editing Functions in Memory

uTo edit a function in memory

Example To change the expression in memory area Y1 from y = 2x

– 5

y = 2x

– 3

(Displays cursor.)

eeeed

(Changes contents.)

(Stores new graph function.)

uTo 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 or 4 (NO) to abort the procedure without

deleting anything.

k Drawing a Graph

Before actually drawing a graph, you should first make the draw/non-draw status.

uTo 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 = 2x

– 5

t2: x = 3 sin T

t2: y = 3 cos T

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Casio fx-7400G PLUS Graphing Instrukcja Użytkownika Strona 8