Definitions - Texas Instruments TITANIUM TI-89 User Manual

Definitions

Definitions Definitions Definitions
Expression Consists of numbers, variables, operators, functions, and
their arguments that evaluate to a single answer. For
example:
•
•
Operator
Performs an operation such as +, –,
•
Function Returns a value.
•
Instruction Initiates an action.
•
•
•
Note: For instructions, do not put the arguments in
parentheses.
Notes:
• The Technical Reference module describes all of the built-in functions and
instructions.
Operating the Calculator
2
r +3.
p
Enter an expression in the same order that it normally is
written.
In most places where you are required to enter a value,
you can enter an expression.
Operators require an argument before and after the
operator. For example: 4+5 and 5^2.
Functions require one or more arguments (enclosed in
parentheses) after the function. For example:
min(5,8)
.
Instructions cannot be used in expressions.
Some instructions do not require an argument. For
example: ClrHome.
Some require one or more arguments. For example:
Circle 0,0,5
.
ù
, ^.
‡
(5) and
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