TI-84 Plus and Silver Edition Manual

124 Appendix A: Tables and Reference Information
Horizontal y Draws a horizontal line at
y.
y <
DRAW
3:Horizontal
identity(
dimension) Returns the identity
matrix of dimension rows x
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
:If
condition
:Then
:
commands
:Else
:
commands
:End
:
commands
Executes commands from
Then to Else if
condition = 1 (true); from
Else to End if condition = 0
(false).
† 
CTL
3:Else
imag(
value) Returns the imaginary
(nonreal) part of a
complex number or list of
complex numbers.

CPX
3:imag(
IndpntAsk
Sets table to ask for
independent-variable
values.
† y -
Indpnt: Ask
IndpntAuto
Sets table to generate
independent-variable
values automatically.
† y -
Indpnt: Auto
Input
Displays graph. † 
I/O
1:Input
Input
[variable]
Input ["text",variable]
Prompts for value to store
to variable.
† 
I/O
1:Input
Function or Instruction/
Arguments
Result
Key or Keys/Menu
or Screen/Item