Convert from binary to decimal
To convert from binary to decimal the flag --b2d flag is used follow by the
binary value
python dec2bin.py --b2d 11001010
The script will convert the binary to decimal with the full description printed in the
terminal. to prevent printing of the description the --verbose false should be issued
along with the flag --b2d.
The commands above will print out the following result…
1*(2**7) + 1*(2**6) + 0*(2**5) + 0*(2**4) + 1*(2**3) + 0*(2**2) + 1*(2**1) + 0*(2**0)
Binary 11001010 to Decimal is 202
Convert from decimal to binary
To convert from deciomal to binary the flag --d2b flag is used follow by the decimal value
python dec2bin.py --d2b 1359
The script will convert the decimal to binary with the full description printed in the
terminal. to prevent printing of the description the --verbose false should be issued
along with the flag --d2b.
The commands above will print out the following result…
1359 largest possible power of two is 10
(2**10) > 1359 hence 1359-1024 binary+=1
(2**9) > 335 hence 335-0 binary+=0
(2**8) > 335 hence 335-256 binary+=1
(2**7) > 79 hence 79-0 binary+=0
(2**6) > 79 hence 79-64 binary+=1
(2**5) > 15 hence 15-0 binary+=0
(2**4) > 15 hence 15-0 binary+=0
(2**3) > 15 hence 15-8 binary+=1
(2**2) > 7 hence 7-4 binary+=1
(2**1) > 3 hence 3-2 binary+=1
(2**0) > 1 hence 1-1 binary+=1
Decimal 1359 to Binary is 10101001111
Help
To view all available command from the command line, use the -h command
dec2bin -h
The help screen is printed like below
usage: dec2bin.py [-h] [--b2d] [--d2b] [--verbose VERBOSE] value
Convert a binary to decimal or from decimal to binary.
positional arguments:
value The value to convert
optional arguments:
-h, --help show this help message and exit
--b2d Convert the binary value to decimal
--d2b Convert the decimal value to binary
--verbose VERBOSE Print out the operation description