Texas Instruments TI-83 PLUS - Manual (Page 263)

TI-83 Plus Matrices 260
Viewing and Editing Matrix Elements
Displaying Matrix Elements
After you have set the dimensions of the matrix, you can view the matrix
and enter values for the matrix elements. In a new matrix, all values are
zero.
Select the matrix from the
MATRX EDIT
menu and enter or accept the
dimensions. The center portion of the matrix editor displays up to seven
rows and three columns of a matrix, showing the values of the elements
in abbreviated form if necessary. The full value of the current element,
which is indicated by the rectangular cursor, is displayed on the bottom
line.
This is an 8 × 4 matrix. Ellipses in the left or right column indicate
additional columns.
# or $ in the right column indicate additional rows.