Casio fx-9860G AU PLUS, User Manual

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20050401
5-3-1
Drawing a Graph
5-3 Drawing a Graph
You can store up to 20 functions in memory. Functions in memory can be edited, recalled,
and graphed.
k k
k k
k Specifying the Graph Type
Before you can store a graph function in memory, you must first specify its graph type.
1. While the Graph relation list is on the display, press 3 (TYPE) to display the graph
type menu, which contains the following items.
• { Y= } / { r= } / { Parm } / { X=c } ... {rectangular coordinate}/{polar coordinate}/{parametric}/
{X=constant}* 1 graph
• { Y> } / { Y< } / { Y
t t t t t
} / { Y
s s s s s
} ... {Y> f (
x
)}/{Y< f (
x
)}/{Y
>
f (
x
)}/{Y
<
f (
x
)} inequality graph
• { CONV }
• {
'
Y= } / {
'
Y> } / {
'
Y< } / {
'
Y t t
t t
t } / {
'
Y s s
s s
s }
... {changes the function type of the selected expression}
2. Press the function key that corresponds to the graph type you want to specify.
k k
k k
k Storing Graph Functions
u
To store a rectangular coordinate function (Y=) *
2
○ ○ ○ ○ ○
Example To store the following expression in memory area Y1 :
y
= 2
x
2 – 5
3
(TYPE)
1
(Y=) (Specifies rectangular coordinate expression.)
c vx -f
(Inputs expression.)
w (Stores expression.)
* 1 Attempting to draw a graph for an expression
in which X is input for an X = constant
expression results in an error.
* 2 A function cannot be stored into a memory area that
already contains a function of a different type from
the one you are trying to store. Select a memory
area that contains a function that is the same type
as the one you are storing, or delete the function in
the memory area to which you are trying to store.