3 graph function operations – Casio fx-9750G PLUS User Manual
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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<}/{Yt
t
t
t
t
}
/{Ys
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.)
cvx-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.)
fsdv
(Inputs expression.)
w
(Stores expression.)