Chapter 20: A to Z Function and Instruction Reference
305
20ATOZ.DOC TI-86, Chap 20, US English Bob Fedorisko Revised: 02/13/01 2:42 PM Printed: 02/13/01 3:05 PM Page 305 of 11820ATOZ.DOC TI-86, Chap 20, US English Bob Fedorisko Revised: 02/13/01 2:42 PM Printed: 02/13/01 3:05 PM Page 305 of 118
If
‡ program editor
CTL menu
:If
condition
:
command-if-true
:
commands
If
condition
is true, executes
command-if-true
.
Otherwise, skips
command-if-true
. The
condition
is
true if it evaluates to any nonzero number, or false if it
evaluates to zero.
To execute multiple commands if
condition
is true, use
If:Then:End
instead.
Program segment:
©
:If x<0
:Disp "x is negative"
©
:If
condition
:Then
:
commands-if-true
:End
:
commands
If
condition
is true (nonzero), executes
commands-if-
true
from
Then
to
End
. Otherwise, skips
commands-if-
true
and continues with the next command following
End
.
Program segment:
©
:If x<0
:Then
: Disp "x is negative"
: abs(x)
¶
x
:End
©
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