Binary

Binary, the base-2 numeral system, represents numbers using two symbols: 0 and 1

Hex

Hexadecimal (also base 16, or hex) is the base-16 positional numeral system, using the 16 symbols 0–9 and A‒F.



Value format string

Example

"Hex is a text serialization format for binary integers;the value in is a 32-bit binary number not hex or decimal"

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How to get the decimal number from ASCII code in MIPS?

"Decode 63697a61f161 hex produces the bytea value x63697a61f161 if bytea_encoding is hex or ciza 361a if bytea_encoding is escape;either way it s a representation of a binary string not text"

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Postgres - decode special characters

"This values can be transformed in binary values print format value1 016b # 1000000100100011 print format value2 016b # 0010010010001111 each one of these bit can be indexed from 0 to 15 from right to left and then we can split them as described in the documentation value1 d3-d0 0011 value1 d7-d4 0010 value1 d8 1 value1 d15 1 for each subset of bit the documentation provides us a number in hex value and each number in hex value can be converted in binary d3-d0 00h bin 0000 normal 01h bin 0001 overvolt 02h bin 0010 undervolt 03h bin 0011 low volt disconnect 04h bin 0100 overtemp and same for other sets."

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Pymodbus in RaspberryPi 3

"If you consider look at the coa8010b c0 in hex is equal to 192 in decimal a8 168 01 1 and 0b 11;in short this is a binary representation not a string representation of 192.168.1.11"

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Null result on Converting NSData to NSString

Size byte heads

Example

"Hex is easier for most people to convert to and from binary in their heads since binary numbers are usually expressed in blocks of eight because that s the size of a byte and eight is exactly two hex digits but hex notation would have been clunky and misleading in dennis time implying the ability to address 16 bits"

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Where did the octal/hex notations come from?

"Just have in mind that the best result is with negative hex and binary integer interpretations simple numbers not so much also with hex you can set up the byte size"

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Two's Complement Binary in Python?

Editors files editing

Example

"I ve been using images to store data since editing binary data through paint.net is much friendlier than most hex editors"

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What is a the quickest way to bitwise convert two ints to a long in java?

"Do not open hex files in a hex editor because hex editors are designed for editing binary files not text files;a hex file is a text file that you can open in notepad emacs or any standard plain text editor"

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AVR: Help me understand assembly to HEX conversion

Characters conversion input

Example

"If the hex input is more than 5 hex characters you will overwrite the memory allocated for binary_line"

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Converting hex to binary and then to decimal

"The conversion from hex to binary is even simpler since you can simply expand each hex digit into the corresponding binary for example 0xa4 - 1010 0100"

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Understanding hexadecimals and bytes in C#

"This is still accepted by calls like inet_addr and has several advantages all fields are fixed width there are only 8 characters to update and the binary to hex conversion is usually faster than binary to decimal"

from question  

What is the fastest way to convert unsigned char array to IP string

Readable useful dump

Example

"And because hex is much more readable and useful than binary - it s often used and shown"

from question  

Difference between machine language, binary code and a binary file

"Hex is somewhat more readable than binary if i happen to be loading a data dump in a text editor etc"

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Storing hexadecimal values as binary in MySQL

Representation head first

Example

"It seems the from a readability and usability standpoint the hex representation is a better way of defining binary numbers"

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Why do most languages not allow binary numbers?

"Converting between decimal and hex is more involving and at least to me it s been easier if i have to do it in my head to first convert the decimal into binary representation and then the binary number into hex"

from question  

Understanding hexadecimals and bytes in C#

Single octal bits

Example

"It is usually better than octal base 8 because each hex digit is 4 bits and binary data is usually arranged in clumps of powers of 2 due to how our computer bit-addressing works"

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When we need to convert binary to hexadecimal in real life

"Each single hex character describes four binary digits exactly while an octal character describes 3 binary digits;hex is used much more often than octal"

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HELP! I don't know binary, hexadecimal, octal, and bit-wise

"As others have pointed out hex is much more convenient than binary anyway - you just need to remember how each of the hex digit 0-f looks in binary and replace groups of 4 bits with a single hex digit"

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Bitwise operations: C vs. Python

Form decimal too

Example

"Call integer.parseint str 16 in a try-catch if you get a numberformatexception it wasn t a valid hex encoded int;computers perform math with binary not decimal and not hex"

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(Java) How to define what letters/numbers/signs are allowed to be input by user?

"00000001 is really a number and you can writer it on any other form but coincidently for decimal is 1 for hex is 1 too;binary is not olny used as a number system to represent a number but also can represent some objects and used as char"

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What is the difference between Assembly and binary?

"First of all 0x00001111 is in hex which is a larger number than 255 - and byte overflows;look here how to represent binary numbers or just use"

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Declaring masks for bitwise operations

Others

Example

The hex file has a checksum on each line;the binary may not have any checks

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Advantage for hex formats like SREC or Intel HEX

One important reason is because hex is alot shorter and easier to read than binary is for humans

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Importance of Hexadecimal numbers in Computer Science

The bit shift operators and move each binary digit one place over depending on the direction of the arrows and so on;the hex is just a nicer format to visualize the bits without having to write out every single bit

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What is the "0xXXXX" syntax when learning bit manipulation? (where X is a capital alphanumeric character)

As in kingsley s answer if you re not familiar with hex notation you could use the binary format

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Processing large amounts of arrays and memory exhaustion

Those hex values seem a bit odd they re powers of two in decimal but in any case 0x128 the 0x is a standard prefix for hex numbers is the larger of the numbers in magnitude and its binary representation is 100101000

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Minimum register length required to store values between -64 (hex) and 128 (hex)?

Decoding a string of hex characters into a binary slice isn t currently part of the crystal standard library so i wrote a decoding function myself;this function takes a string containing hexadecimal characters then decodes it into a slice uint8 or returns nil if the hex is invalid

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Crystal: How can I find the SHA256 hash of a binary value?

Hex is just less verbose and can express anything a binary number can

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Why do most languages not allow binary numbers?

Hex encoding is far more readable than binary that s why sublime uses it

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Reading Encoded File in PHP

Since blob stores binary data and not all bytes are displayable the hex code makes more sense to display the data as hex encoded to human readers

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How to use HeidiSQL BLOB(hex code) in jsp

Base64 is usually used in instances to represent arbitrary binary data in a text format base64 has a 33.3 overhead but that s better than say hex notation which has a 50 overhead

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Why use Base64?

Unfortunately using hex consumes way more space and takes significantly longer i m dealing with 500gb of data and around 1 2 million records so i would really like to get the straight binary method to work

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MySQL blob to file with bash. Why did this corrupt my data?

If the user can specify several registers in one command invocation then binary is more reasonable though not necessarily wholly reasonable but do consider the merits of hex over binary one hex digit controls the value of four bits

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Can I read command line argument as binary?

It does produce hexadecimal rather than binary but it s very likely that hex is what you really want

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How to convert a binary byte into a printable numeric value?

But when anyone human looks at machine code anyone human look at machine code in hex using a hex editor which is much easier than reading binary

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What does binary in script look like?

A hex string is significantly longer than the corresponding binary string

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Why use bin2hex when inserting binary data from PHP into MySQL?

Format_int in binary case it loops 4 times then 4 times more than hex and dec cases

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Slight Delay After Returning from Interrupt

- i usually find debugging memory in hex x command is easier than binary so i will not use my solution

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Formatting the binary representation of data in gdb

The reason hex is seen quite a bit in code is simply that it allows the common 8-bit width of bytes to be represented with exactly and just 2 hex digits which is reasonably concise and not too hard for humans to get used to;it s easy enough to mentally convert back to binary while not losing track of which digits you re looking at the way you can with a 32-bit or 64-bit value in binary

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Why does C++ break down into nibbles?

Hex is short more readable and you have less of a chance of leaving a mistake in your code;if you want to be really explicit i d still recommend using the binary literal over the parseint method as it is safer

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Java: Thinking in Java 4th edition. Why would one use a hexadecimal here?

If the right side the binary side is greater than or equal to the hex side then you print true if not then you print false

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My program works on my computer, but not on CodeEval

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