Casio ALGEBRA FX 2.0, User Manual

Page: 172 / 426

19990401
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 function list is on the display, press
6
(
g
)
3
(TYPE) to display the
graph type menu, which contains the following items.
• {
Y=
}
/
{
r=
}
/
{
Param
}
/
{
X=c
} ... {rectangular coordinate}/{polar coordinate}/{parametric}/
{X=constant}*
1
graph
• {
INEQUA
}
• {
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 number 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)
b
(Y =) (Specifies rectangular coordinate expression.)
c vx -f
(Inputs expression.)
w
(Stores expression.)
u
To store a polar coordinate function (
r
=)
*
2
Example To store the following expression in memory area
r
2 :
!
r
= 5 sin3
!
3
(TYPE)
c
(
r
=) (Specifies polar coordinate expression.)
f s d v
(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.