Hexadecimal

 

Hexadecimal Our Definition Sources and Online Definitions Web-o-pedia Smart Computing Wikipedia Hexadecimal as used in HTML color references

 

Our Definition   Hexadecimal is a base-16 numbering system used for representing binary numbers.  Hexadecimal numbering  is commonly used in programming languages (such as C) and in HTML color references.

 

Sources and Online Definitions

 

Web-o-pedia

"Refers to the base-16 number system, which consists of 16 unique symbols: the numbers 0 to 9 and the letters A to F. For example, the decimal number 15 is represented as F in the hexadecimal numbering system. The hexadecimal system is useful because it can represent every byte (8 bits) as two consecutive hexadecimal digits. It is easier for humans to read hexadecimal numbers than binary numbers.

 

"To convert a value from hexadecimal to binary, you merely translate each hexadecimal digit into its 4-bit binary equivalent. Hexadecimal numbers have either an 0x prefix or an h suffix.  For example, the hexadecimal number 0x3F7A translates to the following binary number: 0011 1111 0111 1010."

 

 

Smart Computing

"Hexadecimal, sometimes called hex, is a base-16 numbering system for representing binary numbers. Children learn about the base-10 numbering system in grammar school, which we use for simple math: decimal. Hexadecimal is useful because binary code, consisting of 0s and 1s, can become long when writing something electronically. Just one byte, for instance, consists of at least eight digits, or bits. Hexadecimal is used frequently for specifying colors in World Wide Web pages. Computers also use it to describe memory addresses and programmers find it useful for computing numbers in preparation for programming.

 

"The hexadecimal numbering system uses combinations of 16 various digits to represent all numerical values. It consists of the 10 digits in the regular decimal system (0, 1, 2, . . . 9), as well as the letters ranging from A to F, which represent the range between 10 and 15, so the hex radix looks like this: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F. Using a combination of these characters, it is possible to represent a two-digit number (10) using one character (A)."

 

 

Wikipedia

"In mathematics and computer science, hexadecimal (also base-16, hexa, or hex) is a numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or a through f) to represent values ten to fifteen.  Its primary use is as a human-friendly representation of binary coded values, so it is often used in digital electronics and computer engineering."

 

 

Hexadecimal as used in HTML color references

 

See Wikipedia - Web colors for more information.

 

 Create your own educational wiki!HelpPublic, not yet premium Privacy Policy RSS