Texas Instruments TI-83 PLUS - Manual (Page 234)

TI-83 Plus Draw Instructions 231
Text( row,column,value,value… )
value can be text enclosed in quotation marks ( " ), or it can be an
expression. The TI-83 Plus will evaluate an expression and display the
result with up to 10 characters.
Split Screen
On a Horiz split screen, the maximum value for row is 25. On a G . T split
screen, the maximum value for row is 45, and the maximum value for
column is 46.