Texas Instruments TI-99/4A - Page 141

A SIMPLE PROGRAM
MAKE YOUR COMPUTER
A CALCULATOR
Let's try a simple program now. First, if you have
anything on your screen, press ENTER to start
on a new line. Now type the word NEW and
then press the ENTERkey. The NEW command
clears the computer's memory and displays the
Tl BASIC READY message on the screen. (It
seems to do the same thing as the CLEAR key,
but the CLEAR key only clears the screen, not
the memory.)
Now, type the following, and don't forget to
press ENTER at the end of each line! (Don't be
concerned ifa program line runs over onto the
next line. Just press ENTER when you're done
typing each numbered program line.)
10 CALL CLEAR
20 PRINT "THIS PROGRAM WILL"
30 PRINT "MULTIPLY TWO NUMBERS."
40 PRINT "WHAT IS THE FIRST NUMBER?"
50 INPUTA
60 PRINT "WHAT IS THE SECOND NUMBER?'
70 INPUT B
80C = A*B
90 PRINT "THE ANSWER IS"
100 PRINT C
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