Texas Instruments TI-80 - Page 158

10-8 Programming
THEN
(
PRGM CTL
, item 2) following an
IF
executes a group of
commands if the condition is true (nonzero).
END
(
PRGM CTL
, item 5) identifies the end of the group.
:IF
condition
:THEN
:
command if true
:
...
:END
:
command
ELSE
(
PRGM CTL
, item 3) following
IF-THEN
executes a
group of commands if the condition is false (zero).
END
(
PRGM CTL
, item 5) identifies the end of the group.
:IF
condition
:THEN
:
command if true
:
...
:ELSE
:
command if false
:
...
:END
:
command
IF-THEN
END
IF-THEN-ELSE
END