Reading Assignment: Hexadecimal Numbers

[Matsik]

1. What is the difference between hexadecimal and decimal numbers?
   -Hexadecimal is base 16, while Decimal is bas 10. Hex: 1-9, A-f. Decimal: 1-9, 10-16

2. Which are the extra “digits” we get in hexadecimal?
   -Instead of 10-16, we use A-F

3. What is the difference between using lower case or upper case letters?
   -There is no difference using Upper and Lower case in Hexadecimal. No standardized method

4. What is hexadecimal for 34?
   -22

[KU1018]

1. What is the difference between hexadecimal and decimal numbers?
   Hexadecimal is base 16 (0-9, A-F) while decimal numbers are base 10 (0-9)

2. Which are the extra “digits” we get in hexadecimal?
   A-F, meaning A=10, B=11, C=12, D=13, E=14, F=15.

3. What is the difference between using lower case or upper case letters?
   There is no difference between using lower and upper case letters. abc = ABC = aBc = AbC and so on.

4. What is hexadecimal for 34?
   0x22 // 30=1E, 31=1F, 32=20, 33=21, 34=22.

[levinardo]

• What is the difference between hexadecimal and decimal numbers?
  Hexadecimal represent numbers on base 16 while decimal on base 10.
• Which are the extra “digits” we get in hexadecimal?
  A - F to represent decimal 10-15
• What is the difference between using lower case or upper case letters?
  No difference
• What is hexadecimal for 34?
  22

[Pave]

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

The decimal number system also called Base10 uses the numbers 0-9 while the HEX number system also called Base16 uses the numbers 0-9 plus the letters A-F. For the numbers 10-15 in the decimal system, the letters A-F are used in the HEX system.

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

A-F instead of 10-16.

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

The HEX number system does not distinguish between upper and lower case.

4. What is hexadecimal for 34?

22

[agcleland]

• What is the difference between hexadecimal and decimal numbers?

Hexadecimal is a base 16 system using standard numbers from 0 to 9 and then letters A to F, whereas decimal numbers are a base 10 system using only numbers 0 to 10 in combination.

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

The extra “digits” we get in hexadecimal are letters:

Hexadecimal 0-1-2-3-4-5-6-7-8-9-A-B-C-D-E-F-10
Decimal 0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16

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

There is no standard when it comes to lower and upper case letters in the hexadecimal system, therefore they can be used indistinctly.

• What is hexadecimal for 34?

Hexadecimal for 34 is 22

[Jean-Sebastien_Neveu]

What is the difference between hexadecimal and decimal numbers?
Decimal numbers are 0-9 like the everyday numbers we use , Hexadecimal is the number 0-9 + you add the letters ABCDEF

Which are the extra “digits” we get in hexadecimal?
The extra digits are letters ABCDEF

What is the difference between using lower case or upper case letters?
There is no difference, there is no standard.

What is hexadecimal for 34?
22

[Chente718]

1. What is the difference between hexadecimal and decimal numbers?
   hexadecimal is 16 base vs decimal is 10 base system.

2. Which are the extra “digits” we get in hexadecimal?
   A-F which represent numbers 10,11,12,13,14,15

3. What is the difference between using lower case or upper case letters? There is none has no effect be it upper or lower cased.

4. What is hexadecimal for 34?
   0x22

[Amri2020]

1. What is the difference between hexadecimal and decimal numbers?
The hexadecimal system uses 16 numerical digits instead of the decimal number system which is based on 10 digits.

2. Which are the extra “digits” we get in hexadecimal?
This are A B C D E F
for 10 11 12 13 14 15

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

4. What is hexadecimal for 34?
022

[cecilia]

Answers

1. The difference between a hexadecimal and decimal numbers are that hexadecimals contains only 16 digits and decimals uses 10.

2. The hexadecimals use A, B, C, D, E, F as extra digits.

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

4. The hexadecimal for 34 is 22.

[EtienneW]

@filip

1 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. Decimal we work mainly with 10 prime numbers whereas hexadecimal numbers there are 16 characters which include letters.

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

3. None really

4. Ox22

[martina]

1. What is the difference between hexadecimal and decimal numbers?
   Decimal is a base 10 number system and uses collection of 10 unique digits (numbers).
   Hexadecimal is a base 16 number system. Set of digits to create large numbers. It is using standard numbers 0-9 and 6 digits: A,B,C,D,E,F. It is most common numeral system in a world of electronics and programming (together with binary system, which uses 0 and 1).

2. Which are the extra “digits” we get in hexadecimal?
   A, B, C, D, E, F which map out to value 10,11,12,13,14,15.

3. What is the difference between using lower case or upper case letters?
   There difference in upper vs lower case letters. A3F is the same as A3f or a3f.

4. What is hexadecimal for 34?
   It is 22.

[MONEYFLOW_MKHWANAZI]

1. hexadecimal has 16 values and the first 10 are numerical and the last 6 is represented alphabetical. while decimal numbers has 10 digits.

2. 10,11,12,13,14,15 which is represented by A,B,C,D,E,F

3. no difference

4. 22

[Arnoo]

@filip

This is an important reading assignment if you truly want to be able to read and understand raw bitcoin transactions. We are going to study hexadecimal numbers, it’s a common way to represent numbers in computer science. You don’t have to be a hexadecimal expert to continue in this course, but it will help if you know what it is.

So read through this article(https://learn.sparkfun.com/tutorials/hexadecimal/all ) (you don’t have to read the sections about conversion), and answer the following questions. Post you answers here.

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

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

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

The regular 10 digits we have are : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
The extra 6 digits we have are : A, B, C, D, E, F.

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

There is no standard for using either upper or lower case, so there is no difference.

However often, to avoid confusion. For example when a hexadecimal only shows letters like “ABS” there will be a prefix indicating that it is representing a hexadecimal number. For example 0x (This you see often in crypto world)

4. What is hexadecimal for 34?

22 is hexadecimal for 34 decimal.

[andylukepd]

1. decimal is base 10 so uses 9 digits ( 1-9) where as hex is base 16 and uses 15 digits (1-F)
2. A B C D E F
3. there is no difference
   4 22

[diego69]

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

The only difference is the base. While decimal numbers are based on 10 digits (equals to the 10 fingers we have in both hands which makes easy to perform mental calculations), the hexadecimal has a base of 16, which is equal to 2 power to 4. Though a hexadecimal numeric system isn’t friendly to humans it makes a lot of sense when dealing with computer sciences. Computers are built upon a binary system (on and off). The number 16 is a power of 2 and makes easier to perform calculus.

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?

No difference at all. It’s just a matter of prefference

4. What is hexadecimal for 34?

22

[kingofnowhere]

1. What is the difference between hexadecimal and decimal numbers?
   Hexadecimal is base16 while decimal number is base10.

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?
   Both are the same

4. What is hexadecimal for 34?
   22

[ivtala]

Homework on Reading Assignment: Hexadecimal Numbers:

1. Hexadecimal number system uses 16 “digits” in its base, then decimal - only 10.
2. A, B, C, D, E and F
3. There is no difference, lower case and upper case have the same meaning.
4. 0x22

[Junior_Chang]

• What is the difference between hexadecimal and decimal numbers?
  A: decimal numbers are 10base, 0-9 (because we have 10 fingers, but i got 10 toes also, lol) hexadecimal are 16base, using also 0-9 and also A,B,C,D,E and F.

• Which are the extra “digits” we get in hexadecimal?
  A: A, B, C, D, E and F

• What is the difference between using lower case or upper case letters?
  A: Nope

• What is hexadecimal for 34?
  A: 22

[BalancedBaldy]

1. The difference between hexadecimal and decimal numbers is that hexadecimal is base 16 which is numbers 0-9 + A, B, C, D, E, F which represent 10-15. Decimal base 10 which is 0-9.
2. The extra digits we get in hexadecimal are A,B,C,D,E,F which represent numbers 10-15.
   3.There is no difference between using lower case or upper case letters they are interchangeable.
3. The hexadecimal for the number 34 is 22.

[JonBal]

1. What is the difference between hexadecimal and decimal numbers?
   – Decimal is a base 10 number system and hexadecimal is a base 16.
2. Which are the extra “digits” we get in hexadecimal?
   – ABCDEF
3. What is the difference between using lower case or upper case letters?
   –upper and lowercase are interchangeable / there is no differance.
4. What is hexadecimal for 34?
   22