Delete line 40 by entering just the line number and retype line 30
as
follows:
30
INPUT
"TIME,
NUMBER
OF
PERIODS"
iT,
K
~
Then add two new lines:
70
PR
I
NT
(ENTER)
80
GOTO
10
~
List the program to verify that it
is:
10
INPUT
"PRINCIPAL,
RATE";
P,
R
30
INPUT
"TIME,
NUMBER
OF
PERIODS";
T ,
K
50
5
= P
*
( 1
+
R /
K)"(T
*
K )
60
PRINT
"TOTAL
IS
$"
;
5
70
PRINT
80
GOTO
10
The program will prompt you for values for all four variables, Here
is
an example
of
the output
of
the program with the following inputs:
PRINCIPAL,
RATE?
2000,
.i
L
TIME,
NUMBER
OF
PERIODS?
5,
4
TOTAL
IS
$
3979.5777269318
PFHNCI
PAL.
RATE?
The program will continue to ask for values for the variables until you terminate the
program manually by pressing
(BREAK).
Line
18
prints a prompt and allows you
to
enter values for the principal P and
the rate
R.
Line 38 prints a prompt and allows you to enter values for the time T and the number
of
periods K. Lines 10 and 30 could have been combined into one line if desired.
Line
68
prints out the message
"TOTAL
IS
$"
and the value
of
S, the total
of
principal and interest at the end
of
T years.
Line
78
skips a line on the display after the output from line 60. This spaces the
output so that it doesn't run together vertically.
Line
88 transfers control back to line 10, where the program starts over again. This
allows you to input a variety
of
values for the variables without entering the RUN
command each time.
38
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