Radio Shack TRS-80 - Page 181

SAMPLE
ANSWER
FOR EXERCISE
3-3:
10 REM
*
CIRCUMFERENCE SOLUTION
*
20 P
=
3.14
30 D
=
35
40
C
=
P
*
D
50
PRINT
"THE
CIRCLE'S
CIRCUMFERENCE
IS";C; "FEET."
SAMPLE RUN
FOR
3-3
THE
CIRCLE'S
CIRCUMFERENCE
IS
109.9
FEET.
Note:
Since n is not included in Radio Shack's
LEVEL
I BASIC, we
have
to
set a variable (in this case P was used) equal to the value of pi
(3.14)
SAMPLE ANSWER
FOR
EXERCISE 34:
10
REM
*
CIRCULAR
AREA
SOLUTION
*
20 P
=
3.14
30
R
=
5
40A=P*R*R
50
PRINT
"THE CIRCLE'S
AREA
IS'*;A;
"
SQUARE
I NCHES
.
"
SAMPLE RUN FOR
34
THE CIRCLE'S AREA
IS
78.5
INCHES.
Note: The LEVEL I BASIC
system does not
have a function which
means
"raise
to the power" to
handle
R
2
.
(LEVEL II BASIC does.)
In easy cases like this one,
we
can
simply use
R
times
R (R*R).
If
you
have
a LEVEL II
system, you'll learn how
to
use the simple EXPO-
NENTIATION function
in
the
USER'S MANUAL
for LEVEL II.
179