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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