Texas TI-86 用户手册

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 118

‡ 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

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