Getting Started with TI InterActive! 23
TII_GettingStarted.doc Getting Started with TI InterActive! Karen Davis Revised: 6/15/04 2:00 PM Printed: 6/15/04 3:39 PM Page 23 of 63
At times, the persistence of variables can create a problem.
Suppose, for example, that you want to change the expression
stored in
num
for use in a different equation.
Variable names that you create:
Can use 1 to 32 characters consisting of letters and digits.
This includes Greek letters (but not
S
), accented letters, and
international letters.
–
Do not use spaces.
–
The first character cannot be a digit.
Can use either uppercase or lowercase letters. The names
AB22
,
Ab22
,
aB22
, and
ab22
all refer to the same variable.
Cannot be the same as a preassigned name. Preassigned
names include:
–
Built-in functions, such as
abs( )
. For a list of functions,
refer to the
Functions and Instructions
section of the
online help.
Resetting all
variables by
inserting a math
section break
TIP
: Math Section Break
is on the Insert menu.
Rules for naming
variables
Inserted math section
break shows the resetting
effect on the math flow.