|
ECS
30B |
Homework #5 |
Winter 2009 |
Due: Monday, Feb 9th.
Filenames: square_root.c, smud.c, calculator.c,
exponents.c
Programming:
All programs should be able to compile with no warnings when compiled
with the
–Wall option. You should put your
name(s) in a comment on the first line of each file.
The prompts, and
output format of each program must match the examples exactly. To use functions from math.h,
you must have –lm on your compile line (that is an “l” as in library)
to link
with the math library, e.g., gcc –Wall –lm gcd.c
#7. page 326. Filename: square_root.c
[…@pc…]$square_root.out
The square root
of 4 is approximately
2.0000
The square root
of 120.5 is approximately 10.9772
The square root
of 88 is approximately 9.3808
The square root
of 36.01 is approximately 6.0008
The square root
of 10000 is approximately 100.0000
The square root
of 0.25 is
approximately 0.5000
[…@pc…]$
#10,
page 327.
Filename: calculator.c
[…@pc…]$ calculator.out
Repeatedly enter
operator and operand (q 0 to end)
+ 5.0
result so far is 5.00
^ 2
result so far is 25.00
/ 2.0
result so far is 12.50
q 0
final result is 12.50
[…@pc…]$ calculator.out
Repeatedly enter
operator and operand (q 0 to end)
+ 2.0
result so far is 2.00
* 3.0
result so far is 6.00
# 2
Invalid
operation: #
Final result is
6.00
[…@pc…]$
#11, page 328 Filename: exponents. c (with a slight difference: do this for any given base (not just 2). Please tabbing for the header and
for each line, exactly as below: (we'll
shortly place a exponents.out executable for your output comparison)
[…@pc…]$ ./a.out
How many do
you want > 6
What base
would you like > 5
Power of
2 Fraction
Decimal Value
-1
1/5
0.200000
-2
1/25
0.040000
-3
1/125
0.008000
-4
1/625
0.001600
-5
1/3125
0.000320
-6
1/15625
0.000064