BASICS ON HOW TO USE
TI-83 PLUS
By: Joseph Jackson
TURN ON
ON KEY
TO TURN OFF
2ND KEY
THEN
ON KEY
BASIC OPERATIONS
ENTER the # and
then press one of the
operation keys and
then another # and
press ENTER to
perform the desired
operation
Note: A string of
operations can be
entered.
GRAPHING
The top row
contains your
graphing keys.
To see the graph of a
function enter it into
the “Y=“ menu and
press graph.
EXPONENTS
To raise a # to a power enter
the number, ^, the exponent
number and press ENTER
to perform the operation.
RADICALS
To take the square root of
a number press the “2nd”
key and then the “x²” key.
YOU MUST CLOSE
THE PARENTHESES
BEFORE PRESSING
ENTER.
STORE \RECALL
To store a value into the
calculator as a variable enter
the # and press the “STO”
button. Then press the
“Alpha” Key and choose a
green letter for it to be
stored as. To use this
variable simply treat it like
any other #. For example,
enter a value of 5 for the
variable A. Then do “6*A”
and your will get 30 as an
answer.
MATRICES
• Enter “2nd” and then “x-1”
key which is MATRIX
• Arrow key over to the edit
menu.
• Choose a matrix name
• Then first enter the
dimensions, followed by
the matrix entries.
MATRICES-CONTINUED
• To perform matrix operations such as
finding a determinant go to MATH in the
matrix menu and choose “det” which is # 1.
• Then go back to the matrix menu and under
the names submenu choose the matrix you
want to use and press ENTER.
EVEN MORE MATRICES
• To solve a system using Gauss-Jordan
Elimination (or reduced row echelon form)
use the same procedures that you would for
the determinant but choose “rref” from the
math submenu. Your answers will be in the
last column.
REFERENCES
30 Apr. 2007 <http://www.ticalc.org/images/calcs/83plus-blue-big.gif>.