Texas Instruments TI-86 Manual

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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

©