Radio Shack TRS-80 Model 100 Basic Manual page 45

Experiment #7 ·Personalizing the Output -
Printing a Name
The compound interest program as it currently exists is:
10 INPUT "PRINCIPAL, RATE"; P, R
30 INPUT "TIME, NUMBER OF PERIODS"; T, K
50 S
=
P
*
(1 + R /
Klh(T
*
Kl
60 PRINT "TOTAL IS $"; S
70 PRINT
80 GoTo 10
Add line 40 as follows:
£10 INPUT "NAME"; N$
and change line 60 to
60 PRINT "TOTAL FOR "
Add line 65
65 PRINT N$;" IS $"; S
List the program to confirm it is
1121 INPUT "PRINCIPAL, RATE";
1',
R
3121 INPUT "TIME, NUMBER OF PERIODS"; T, K
£10 INPUT "NAME"; N$
50 S
=
P
*
(1 + R /
K)h(T
*
K)
60 PRINT "TOTAL FOR"
65 PRINT N$;" IS $"; S
7121 PRINT
80 GoTo
1121
When you execute the program you will be prompted, as before, for the principal,
rate, time and number of periods. In addition, you will be prompted for a name. After
this data is entered, the name and the amount of the investment will
be
printed. Run
the program and enter the data as indicated below (of course, you may enter any other
name you wish):
PRINCIPAL, RATE? 2000, .13
TIME, NUMBER OF PERIODS? 10, 2
NAME? JANICE SMITH
TOTAL IS
$
17618.22531759
Execute the program several times with various numeric values and names. To
tenninate execution, (BREAK) must be pressed.
Lines
ut .
38 allow you to enter values for the numeric variables in the program.
39