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TI-83 Plus Operating the TI-83 Plus Silver Edition 13
Entering Expressions and Instructions
What Is an Expression?
An expression is a group of numbers, variables, functions and their
arguments, or a combination of these elements. An expression evaluates
to a single answer. On the TI-83 Plus, you enter an expression in the
same order as you would write it on paper. For example,
p
R
2
is an
expression.
You can use an expression on the home screen to calculate an answer.
In most places where a value is required, you can use an expression to
enter a value.
Entering an Expression
To create an expression, you enter numbers, variables, and functions
from the keyboard and menus. An expression is completed when you
press
Í
, regardless of the cursor location. The entire expression is
evaluated according to Equation Operating System (EOS
é
)
rules
, and
the answer is displayed.
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