Texas Instruments TI-83 PLUS - Manual (Page 669)

TI-83 Plus Tables and Reference Information 666
Function or Instruction/
Arguments
Result
Key or Keys/
Menu or Screen/Item
GridOff Turns off grid format. † y .
GridOff
GridOn Turns on grid format. † y .
GridOn
G-T Sets graph-table vertical split-screen
mode. † z
G-T
Horiz Sets horizontal split-screen mode. † z
Horiz
Horizontal y Draws a horizontal line at y . y <
DRAW
3:Horizontal
identity( dimension ) Returns the identity matrix of
dimension rows × dimension
columns.
y
>
MATH
5:identity(
:If condition
: commandA
: commands
If condition = 0 (false), skips
commandA .
† 
CTL
1:If
:If condition
:Then
:
commands
:End
:
commands
Executes commands from Then to
End if condition = 1 (true).
† 
CTL
2:Then