binary numbers into hexadecimal numbers

A) 101 1011(2)
= 5B(16)

B) 1111 0111 0101(2)
= F75(16)

hexadecimal numbers into binary numbers
A) 9C(16)
= 1001 1100(2)

B) 24D(16)
= 10 0100 1101(2)

2007-07-17 10:03:55 補充：
二進數轉十六進數時，將二進數由個為起，每隔四個位作一組數字，然後用下表二進數和十六進數的關係換算二進數十六進數的換算表0000(2) ←→ 0(16)0001(2) ←→ 1(16)0010(2) ←→ 2(16)0011(2) ←→ 3(16)0100(2) ←→ 4(16)0101(2) ←→ 5(16)0110(2) ←→ 6(16)0111(2) ←→ 7(16)

2007-07-17 10:04:20 補充：
1000(2) ←→ 8(16)1001(2) ←→ 9(16)1010(2) ←→ A(16)1011(2) ←→ B(16)1100(2) ←→ C(16)1101(2) ←→ D(16)1110(2) ←→ E(16)1111(2) ←→ F(16)而十六進數轉二進數亦可用這表轉換

A). 5B (16)
B). F75 (16)

A). 10011100 (2)
B). 1001001101 (2)