The {{KW|HEX$}} function returns the base 16 hexadecimal representation of an [[INTEGER]], [[LONG]] or [[_INTEGER64]] value as a [[STRING]].


{{PageSyntax}}
:''result$'' = {{KW|HEX$}}({{Parameter|decimal_number%}})


{{PageDescription}}
* The function returns the string hexadecimal (base-16) representation of a ''decimal'' integer.
* If the parameter is not an Integer, it will be converted to one by HEX$.
* The function does not return a leading sign space so [[LTRIM$]] is not necessary.
* Can be used in place of [[STR$]] to trim both sides of positive decimal values 0 to 9 only.
* [[VAL]] can convert the string value back to a decimal value by prefixing the string return with "&H".


''Example:'' Comparing decimal, hexadecimal and octal string values 0 to 15.
{{CodeStart}} '' ''
LOCATE 2, 20: PRINT "   Decimal | Hexadecimal | Octal  "
LOCATE 3, 20: PRINT "-----------+-------------+--------"
        template$ = "    \ \    |     \\      |    \\  "

FOR n% = 0 TO 15
  LOCATE 4 + n%, 20: {{Cl|PRINT USING}} template$; {{Cl|STR$}}(n%); {{Cl|HEX$}}(n%); {{Cl|OCT$}}(n%)
NEXT n% '' ''
{{CodeEnd}}
{{OutputStart}}
                     Decimal | Hexadecimal | Octal
                  -----------+-------------+--------
                       0     |     0       |    0   
                       1     |     1       |    1
                       2     |     2       |    2
                       3     |     3       |    3
                       4     |     4       |    4
                       5     |     5       |    5
                       6     |     6       |    6
                       7     |     7       |    7
                       8     |     8       |    10
                       9     |     9       |    11
                       10    |     A       |    12
                       11    |     B       |    13
                       12    |     C       |    14
                       13    |     D       |    15
                       14    |     E       |    16
                       15    |     F       |    17
{{OutputEnd}}
''Note:'' Decimal [[STR$]] values contain a leading sign space so values require an extra space in the template using the slash format.


{{PageSeeAlso}}
* [[OCT$]], [[STR$]], [[VAL]]
* [[&H]] {{text|(hexadecimal)}}, [[&O]] {{text|(octal)}}, [[&B]] {{text|(binary)}}
* [[Base Comparisons]]   
* [[HEX$ 32 Bit Values]]


{{PageNavigation}}