Texas Instruments TITANIUM TI-89 User Manual
Page 615

Programming
615
Typically, the loop contains commands that let the program exit from the loop. Commonly
used commands are:
If
,
Exit
,
Goto
, and
Lbl
(label). For example:
Ê
An If command checks the condition.
Ë
Exits the loop and jumps to here when x increments to 6.
Note:
The
Exit
command exits from the current loop.
In this example, the
If
command can be anywhere in the loop.
The
If
command could also use a
Goto
command to transfer program control to a
specified
Lbl
(label) command.
К
Л
:0
!
x
:Loop
: Disp x
: x+1
!
x
: If x>5
: Exit
:EndLoop
:Disp x
When the If command is:
The loop is:
At the beginning of the loop
Executed only if the condition is true.
At the end of the loop
Executed at least once and repeated
only if the condition is true.