Texas Instruments TI-83 Calculator Notes

24 Discovering Algebra Calculator Notes for the Texas Instruments TI-83 and TI-83/84 Plus ©2007 Key Curriculum Press
Note 1L • Matrices (continued) TI-83 and TI-83/84 Plus
(continued)
Enter [A] to have dimensions 6  2.
Displaying a Matrix
Press [MATRIX] to see which matrices are stored in the calculator. (On the
TI-83, press to see which matrices are stored in the calculator.) You can
see the dimensions of each stored matrix. To display the name
[A] on the Home
screen, press
[MATRIX] . (On the TI-83, to display the name [A] on the
Home screen, press .) Press to display the actual matrix.
If you want a matrix to represent money, you can set the calculator so that all
numbers show two decimal places. Press and change the setting on the
second line from
Float to 2.All calculator numbers will now display two
decimal places.
Deleting a Matrix from the Calculator
You can always change a matrix by arrowing to EDIT in the matrix menu and
selecting the matrix you want to change. You might, however, want to conserve
memory space and delete a matrix completely from your calculator. To delete a
matrix, press
[MEM] (Delete...) (Matrix...), arrow to the matrix you want
to delete, and press .
ENTER
522nd
MODE
ENTER1
MATRX
12nd
MATRX
2nd
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Texas Instruments TI-83 Specifications

General

Programming	TI-BASIC
Processor	Zilog Z80, 6 MHz
Weight	7.4 oz (210 g)
Display	96x64 pixels, monochrome LCD
Power Source	4 AAA batteries, 1 CR1616 or CR1620 for backup
Memory	32 KB RAM
Connectivity	2.5mm I/O port for linking with other TI calculators