Texas Instruments TI InterActive! Getting Started Manual page 19

Storing a value
in a variable
TIP: If you have
changed a document
and then attempt to
create a new document,
TI InterActive! gives you
the option to save the
first document before
proceeding.
Checking a
variable's value
This example creates a variable named
of the expression 5+8
1. On the TI InterActive! toolbar, click the New button
start a new, blank document.
2. Click the Math Box button
3. Type the variable name
characters are required from the keyboard), or click
the Math Palette.
num :=
4. Type the expression 5+8^3 . The result—not the expression—
will be stored in
num := 5+8^3
5. Press Enter on the computer keyboard. TI InterActive!
creates the variable
You can check the value of a variable by entering its name as the
entry in a subsequent Math Box.
1. Click the Math Box button
necessary.
2. Type the variable name
keyboard. The value currently stored in
the result.
num
3
in that variable.
to insert a new Math Box.
and then type := (both
num
.
num
This means: Let the variable "num"
equal the result of 5+8
and stores the result there.
num
to insert a new Math Box, if
and press Enter on the computer
num
Getting Started with TI InterActive!
and stores the result
to
on
3
.
is displayed as
num
19