Casio CFX-9850G PLUS, User'S Manual & Technical Reference

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8-3 Graph Function Operations
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 Function Menu 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} 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
2. Press the function key that corresponds to the graph type you want to specify.
k k k k k
Storing Graph Functions
u u
u u u
To store a rectangular coordinate function (Y =)
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.)
• You will not be able to store the expression in an area that already contains a
parametric function. Select another area to store your expression or delete the
existing parametric function first. This also applies when storing
r
= expres-
sions, X = constant expressions, and ineqalities.
u u
u u
u
To store a polar coordinate function (
r
=)
Example To store the following expression in memory area r2 :
r
= 5 sin 3
θ
3
(TYPE)
2
(
r
=) (Specifies polar coordinate expression.)
f s d v
(Inputs expression.)
w
(Stores expression.)