Quiz 2(a) Tue 2 Sep 2008

Write the binary number 1001110010 in hexadecimal notation. Show your work.

Answer:

          10 0111 0010 = 2 7 2 in hexadecimal
because
          0010 = 2
          0111 = 7

Write the decimal number 321 as a bit sequence, i.e.: in binary notation.

Execute the algorithm by hand and show all steps.

Answer:

        n    n / 2    n % 2
     ----------------------------
       321    160       1
       160     80       0
        80     40       0
        40     20       0
        20     10       0
        10      5       0
         5      2       1
         2      1       0
         1      0       1

So 321 in binary is 101000001 = 1 0101 0001

Show how to use the hexadecimal conversion in Python to verify your answer.
Answer:
```
>>> '%X' % 321
'141'
```