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Shading the Region Bounded by Two Expressions
You can shade the region bounded by two expressions by specifying [ShadeType] as the
function type and then inputting the expressions in the syntax shown below.
Syntax:
y
a
{lower function
f
(
x
), upper function
g
(
x
)}
|
A <
x
< B
The value of B must be greater than A.
• A <
x
< B can be omitted.
• A <
x
< B can be replaced with
x
> A.
• A <
x
< B can be replaced with
x
< B.
Example:
To graph
f
(
x
) =
x
2
– 1,
g
(
x
) = –
x
2
+ 1, –1 <
x
< 1
u
ClassPad Operation
(1) On the Graph Editor Window, tap [Type] and then [ShadeType].
(2) Store
y
a
{
x
2
–1, –
x
2
+1}
|
–1<
x
<1 in line
y
1.
(3) Tap
$
.
• When [ShadeType] is selected as the function type, the status bar displays “{low,
upper}
|
L<
x
<R”.
3-3-11
Storing Functions