16-8 Programming
8316PROG.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:23 PM Printed: 02/19/01 1:39
PM Page 8 of 22
To display the PRGM CTL (program control) menu, press
from the program editor only.
CTL I/O EXEC
1:If Creates a conditional test.
2:Then Executes commands when If is true.
3:Else Executes commands when If is false.
4:For( Creates an incrementing loop.
5:While Creates a conditional loop.
6:Repeat Creates a conditional loop.
7:End Signifies the end of a block.
8:Pause Pauses program execution.
9:Lbl Defines a label.
0:Goto Goes to a label.
A:IS>( Increments and skips if greater than.
B:DS<( Decrements and skips if less than.
C:Menu( Defines menu items and branches.
D:prgm Executes a program as a subroutine.
E:Return Returns from a subroutine.
F:Stop Stops execution.
G:DelVar Deletes a variable from within program.
H:GraphStyle( Designates the graph style to be drawn.
These menu items direct the flow of an executing program.
They make it easy to repeat or skip a group of commands
during program execution. When you select an item from
the menu, the name is pasted to the cursor location on a
command line in the program.
To return to the program editor without selecting an item,
press ‘.
Program control instructions tell the TI-83 which
command to execute next in a program. If, While, and
Repeat check a defined condition to determine which
command to execute next. Conditions frequently use
relational or Boolean tests (Chapter 2), as in:
If A<7:A+1!A
or
If N=1 and M=1:Goto Z
PRGM CTL (Control) Instructions
PRGM CTL Menu
Controlling
Program Flow