Chapter 6 binary, octal, and hexadecimal
6.1 why do we need octal and hexadecimal?
6.2 decimal number conversion to decimal number
6.2.1 convert binary to decimal
6.2.2 convert octal to decimal
6.2.3 expression of the octal number
6.2.4 use of Octal
6.1 why do we need octal and hexadecimal?
In programming, we usually use 10 hexadecimal notation ...... C/C ++ is a high-level language.
For example:
Int A = 100, B = 99;
However, because the representation of data in a computer exists in binary
6.1
Why do we need octal and hexadecimal?
In programming, we usually use 10 hexadecimal notation ...... C/C ++ is a high-level language.
For example:
Int A = 100, B = 99;
However, because the representation of data in a computer exists in
5.8. hexadecimal. 2
5.8.1 hexadecimal
DescriptionIn hexadecimal notation, we will first ask: there are only 10 Arabic numerals in total: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9, how can we express the concept of "every 16 to 1? The method is to use English
Hexadecimal conversion, hexadecimal to hexadecimal
I. Numerical and numeric Conversion
(1) Number System
Binary is used in computers, because binary is easy to operate, easy to implement, and reliable, providing a favorable way for logical design
Ii. Convert hexadecimal to decimalConvert binary to decimal: 0th bits in binary are 0 to the power of 2, and 1st bits are 1 to the power of 2 ......Therefore, there is a binary number: 0110 0100, which is converted to a 10-digit system:The following
Integer source code to binary to hexadecimal, integer source code
There is a private method, where toUnsignedString (int I, int shift) isPublic static String toHexString (int I ){Return toUnsignedString (I, 4 );}Public static String toBinaryString (
Explanation: mutual conversion of binary, octal, decimal, and hexadecimal values: in addition to the remainder of 2, the integers are arranged in reverse order, that is, each time an integer is divided by 2, and the remainder is the number on the
Use JavaScript For hexadecimal conversion and javascript hexadecimal conversion
JS is a magical language. Many internal functions can help us convert data (in;Javascript can be directly in hexadecimal notation;Var a = 0xff; // 255.
Convert any
Conversion between commonly used decimal, hexadecimal, string, and byte string in python (new post for a long time)
During protocol parsing, you will always encounter various data conversion problems, from binary to decimal, from byte string to
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