Texas Instruments TI-99/4A User Reference Guide

IF- THEN-ELSE
An alternative format of the IF-THEN -ELSE statement is to use a
numeric'expression with no relationship expressed. In the example
on the right, the computer
will evaluate the expression A +B. If the
result is zero. the expression is treated as false. A non-zero result
is
trf'.atf'.O a~ trtlf':. Thi" i" thp "amp a,,:
IF expression < > a THEN line-J.
II-52
Examples:
>NEW
>100 INPUT "A IS ":A
>110 INrUT "0 IS ";0
>120 IF A+B THEN 150
>130
PRINT "RESULT IS ZERO,EX
PRESSION FALSE"
>140 GOTD 100
>150 PRINT "RESULT IS NON-ZER
O,EXPRESSION TRUE"
>160 GO TO 100
>RUN
A IS 2
8 IS 3
RESULT IS NON-ZERO,EXPRESSIO
N TRUE
A IS 2
B IS -2
RESULT IS ZERO,EXPRESSION FA
LSE.
(Press CLEAR to end loop)
User's Reference GUIde

Texas Instruments TI-99/4A Specifications

General

Brand	Texas Instruments
Model	TI-99/4A
Category	Desktop
Language	English