Reading Assignment: Hexadecimal Numbers

[Peter_Vongpaseuth]

1. The difference between hexadecimal and decimal numbers is that hexadecimal numbers is base 16 meaning unique 15 digits when compared with decimals which is base 10 which contains 9 unique digits.
2. The extra digits we get in hexadecimal are letters A, B, C, D, E, and F.
3. There is no difference between upper case and lower case letters.
4. the hexadecimal for 34 is 22.

[Sunshine52816]

1. the base number in decimal numbers is 10 and in hexadecimal is 16

2. A, B, C, D, E, F

3. it should not change anything in the meaning

4. 22

[Hector_Martinez]

1. What is the difference between hexadecimal and decimal numbers?
   Hexadecimal is a base 16 numeral system, using a set of 16 digit numbers. Hexadecimal combines sets of digits to create 16 unique digit numbers. Decimal is a base 10 numeral system, representing a set of 10 digit numbers.

2. Which are the extra “digits” we get in hexadecimal?
   A, B, C, D, E, F.

3. What is the difference between using lower case or upper case letters?
   There’s no difference between lower case and upper case letters. Upper and
   lower case letters represent the same values in the mapping.

4. What is hexadecimal for 34?
   0x22

[blockchainbrain]

1. Decimal uses 10 digit system 0-9 while hexidecimal uses 16 digits.
2. ABCDEF
3. There is none
4. 22

[ldvcnagy]

1. decimal uses only 0-9 numbers, hex uses 0-9 numbers and abcdef characters to represent numbers
2. abcdef
3. no difference
4. 22

[Leonard_Gohlke]

1. Hexadecimal have base 16 and decimal have base 10
2. ABCDEF
3. There is no difference
4. 22

[andrequintino]

1. What is the difference between hexadecimal and decimal numbers?

Hexadecimal – also known as hex or base 16 – is a system we can use to write and share numerical values. In that way it’s no different than the most famous of numeral systems (the one we use every day): decimal. Decimal is a base 10 number system (perfect for beings with 10 fingers), and it uses a collection of 10 unique digits, which can be combined to positionally represent numbers. Hex, like decimal, combines a set of digits to create large numbers. It just so happens that hex uses a set of 16 unique digits .

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2. Which are the extra “digits” we get in hexadecimal?

Hex uses the standard 0-9, but it also incorporates six digits you wouldn’t usually expect to see creating numbers: A, B, C, D, E, and F.

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3. What is the difference between using lower case or upper case letters?

Both upper and lower case representations of A-F work. There isn’t much of a standard in terms of upper versus lower case. A3F is the same number as a3f is the same number as A3f.

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4. What is hexadecimal for 34?

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[pmgoff]

• What is the difference between hexadecimal and decimal numbers?

Hexadecimal is a base 16 system, which represents number 0-9 and letter a-f (representing 10-15).
Decimal uses a base 10 system. decimal uses a collection of 10 unique digits, which can be combined to positionally represent numbers.

• Which are the extra “digits” we get in hexadecimal?
  A,B,C,D,E,F representing 10,11,12,13,14,15,

• What is the difference between using lower case or upper case letters? There is no difference.

• What is hexadecimal for 34?
  34/16=2.125
  16*.125=2 = 2R2= 0x22

[Alko89]

Hmmm, maybe we should flip the order in this course to have HEX numbers before script programming

[cryptocol]

1. Hexadecimal numbers use base 16, whereas decimal numbers use base 10.

2. The extra digits, a,b,c,d,e,f in hexadecimal correspond to the values, 10,11,12,13,14,15 in decimal.

3. There is no difference between using upper or lower case letters.

4. 34 in decimal is 22 in hexadecimal.

[Asit]

@filip

• What is the difference between hexadecimal and decimal numbers?
• Which are the extra “digits” we get in hexadecimal?
• What is the difference between using lower case or upper case letters?
• What is hexadecimal for 34?

1. What is the difference between hexadecimal and decimal numbers?

Decimal has base 10 (from 0-9) and Hexadecimal has base 16 (0-15 or 0-9 + A, B, C, D, E, and F)

2. Which are the extra “digits” we get in hexadecimal?

A, B, C, D, E, and F which correspond to 10,11,12,13,14, and 15 are extra.

3. What is the difference between using lower case or upper-case letters?

There is no difference. There is no standard. They are interchangeable.

4. What is hexadecimal for 34?

Step 1. 34/16 remainder is 2 so (2_)16
Step 2. 2/16 remainder is 2 so (22)16
Hence, 22 is hexadecimal representation for the number 34.

[RonJambo]

1. Hexadecimal uses a base-16 where as decimal uses a base-10 number system.

2. A,B,C,D,E,F wich stands for 10,11,12,13,14,15.

3. There is no difference.

4. The answer is 22.

[Jordi_V]

1. What is the difference between hexadecimal and decimal numbers?
decimal uses numbers from 0-9. hexadecimal uses numbers from 0-9 but als the letters A, B, C, D, E and F.
2. Which are the extra “digits” we get in hexadecimal?
A, B, C, D, E and F.
3. What is the difference between using lower case or upper case letters?
They represent the same.
4. What is hexadecimal for 34? (Use your head!)
22

[kal]

1. hexadecimal (or base16) is an alternative numbering system that incorporates 16 unique digits as opposed to 10 from traditional numbering (base10).

2. The hexadecimal digits are the standard 0-9 plus A,B,C,D,E,F.

3. There is no difference between upper and lower case lettering in hex/base16

4. Hex 34 = 22

[karips]

1. Hexadecimal and decimal are just two different counting systems. In we can store with just one digit a maximum integer of nine (0-9); whereas in hex, by borrowing 6 symbols from the alphabet we can represent an integer up to the value of 15 (0-F). The decimal system is learnt in most cultures and is considered to be more intuitive (we count with 10 fingers when young), hex is a compact way of representing long binary instructions natively used in electronic circuits.
2. A-F (10-15 in decimal values)
3. No difference in hex, both can be encountered depending on the underlying system.
4. 22 (2 * “sixteens” + 2 units)

[RobF]

1. Decimal Numbers are base 10 (0-9). Hexadecimal numbers are base 16 (0-15 with 10-15 being represented by A-F).
2. A , B, C, D, E, F which represent 10, 11, 12, 13, 14, 15.
3. There is no difference. Hexadecimal is not case sensitive.
4. 22

[56butch]

1. Hexadecimal is a 16 base number system (0-9, A-F) and
   the decimal number system is a 10 base system (0-9).

2. The extra digits we get in hexadecimal are A B C D E and F.

3. There is no difference in using lower case and upper case
   letters.

22 is hexadecimal for 34.

[belinox]

1. The difference is the base for the number representation. Decimals use a base 10 and hexadecimals use base 16.
2. A, B, C, D E and F.
3. There is no difference.
4. 22 -> 2x16^1 + 2x16^0 = 34

[Emmett]

1. What is the difference between hexadecimal and decimal numbers?

hex is based on a 16 digit numbering system, decimal is 10

2. Which are the extra “digits” we get in hexadecimal?
   ABCDEF

3. What is the difference between using lower case or upper case letters?
   none

4. What is hexadecimal for 34?
   0x22

[NaraneJr]

A.1. Hexadecimal is a base 16 numerical system i.e. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B C, D, E, F.

Decimal is a base 10 numerical system i.e. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

A.2. The extra digits/ values in hexadecimal are: A, B, C, D, E, F.

A.3. In hexadecimal there is no difference between upper and lower case letters. For example:

• 1A (hex) = 26 (dec)
• 1a (hex) = 26 (dec)

A.4. 34 (dec) = 22 (hex)