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2-8-2
Using the Interactive Menu
u To factorize from the Action menu
(1) Tap [Action], [Transformation], and then [factor].
• This inputs “factor(” into the work area.
(2) Input the expression you want to factorize
(x
3
– 3x
2
+ 3x – 1).
(3) Tap w.
• This factorizes the selected expression.
[Interactive] menu operations come in handy in the following cases.
•When you want to use a command on an expression you are calculating
•When you want to use a command that requires multiple arguments
When you use the [Interactive] menu to access a command that requires multiple
arguments, the dialog box that appears for command selection also shows the number of
arguments, the contents of each argument, and the input sequence. This lets you perform
your input without worrying about command syntax.
The following procedure shows an example of using the [Interactive] menu when three
arguments need to be specified.
Example: To obtain the definite integral of x
2
+ 2x, 1 s x s 2
u ClassPad Operation
(1) In the work area, input the expression ( x
2
+ 2x).
(2) Drag the stylus across the expression to select it.
• Though the above two procedures are quite different, they both produce the same result.