Difference between revisions of "Hexadecimal"

From Lazarus wiki
Jump to navigationJump to search
m (Remove categories (defined in the template))
(9 intermediate revisions by 5 users not shown)
Line 1: Line 1:
Hexadecimal (hex) is number system to the base 16. In hexadecimal the decimal numbers 0–15 are represented by the symbols  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F. Hexadecimal numbers are easy to convert to the computer's internal binary code and are more compact than binary numbers. One hexadecimal digit stands in place of four binary bits (4-bits).
+
{{Hexadecimal}}
  
In [[Pascal]] hexadecimal is indicated by use a prefixed $
+
Hexadecimal (hex) is number system to the base 16. In hexadecimal the decimal numbers 0–15 are represented by the symbols  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F. Hexadecimal numbers are easy to convert to the computer's internal binary code and are more compact than [[Binary numeral system|binary numbers]]. One hexadecimal digit stands in place of four binary bits (4-bits).
 +
 
 +
In [[Pascal]] hexadecimal is indicated by use a prefixed [[Dollar_sign|$]]
  
  
Line 7: Line 9:
  
  
{|   border="1" style="margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px  solid; border-collapse: collapse;"
+
{| class="wikitable"
|   Hexadecimal  
+
! Hexadecimal !! Decimal !! Binary
|   Decimal  
 
|   Binary  
 
 
|-
 
|-
 
|   $0000  
 
|   $0000  
 
|   0  
 
|   0  
|   %0000000000000000  
+
|   [[Percent_sign|%]]0000000000000000  
 
|-
 
|-
 
|   $0001  
 
|   $0001  
Line 125: Line 125:
 
|-
 
|-
 
|}
 
|}
 +
 +
 +
= See also =
 +
 +
[[Function]]s:
 +
* [[doc:rtl/strutils/hex2dec.html|Hex2Dec]] Converts a hexadecimal [[String|string]] to a decimal value.
 +
* [[doc:rtl/strutils/hextobin.html|HexToBin]] Convert a hexadecimal string to a binary buffer.
 +
* [[doc:rtl/sysutils/inttohex.html|IntToHex]] Convert an [[Integer|integer]] value to a hexadecimal string.
 +
 +
[[Procedure]]
 +
* [[doc:rtl/strutils/bintohex.html|BinToHex]] Convert a binary buffer to a hexadecimal string.

Revision as of 09:46, 3 May 2020

Deutsch (de) English (en) suomi (fi) français (fr) português (pt) русский (ru)

Hexadecimal (hex) is number system to the base 16. In hexadecimal the decimal numbers 0–15 are represented by the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F. Hexadecimal numbers are easy to convert to the computer's internal binary code and are more compact than binary numbers. One hexadecimal digit stands in place of four binary bits (4-bits).

In Pascal hexadecimal is indicated by use a prefixed $


Conversion Table

Hexadecimal Decimal Binary
  $0000     0     %0000000000000000  
  $0001     1     %0000000000000001  
  $0002     2     %0000000000000010  
  $0003     3     %0000000000000011  
  $0004     4     %0000000000000100  
  $0005     5     %0000000000000101  
  $0006     6     %0000000000000110  
  $0007     7     %0000000000000111  
  $0008     8     %0000000000001000  
  $0009     9     %0000000000001001  
  $000a     10     %0000000000001010  
  $000b     11     %0000000000001011  
  $000c     12     %0000000000001100  
  $000d     13     %0000000000001101  
  $000e     14     %0000000000001110  
  $000f     15     %0000000000001111  
  $0010     16     %0000000000010000  
  $0011     17     %0000000000010001  
  $0012     18     %0000000000010010  
  $0013     19     %0000000000010011  
  $0014     20     %0000000000010100  
  ...     ...     ...  
  $009f     159     %0000000010011111  
  $00a0     160     %0000000010100000  
  ...     ...     ...  
  $00ff     255     %0000000011111111  
  $0100     256     %0000000100000000  
  $0101     257     %0000000100000001  


See also

Functions:

Procedure

  • BinToHex Convert a binary buffer to a hexadecimal string.